77477
domain: N
Properties
Primality
- Prime
- yes
Appears in sequences
- Primes that contain digits 4 and 7 only.at n=8A020465
- Greater of two consecutive palindromes, both of which are prime.at n=18A032594
- Numbers having four 7's in base 10.at n=18A043520
- Palindromic primes containing at least one pair of consecutive equal digits.at n=12A050786
- Palindromic primes with just two distinct digits.at n=31A056730
- Palindromic wing primes (a.k.a. near-repdigit palindromic primes) of the general form r*(10^d - 1)/9 + (m-r)*10^floor(d/2) where d is the number of digits (an odd number > 1), r is the repeated digit, and m (different from r) is the middle digit.at n=19A077798
- Palindromic primes with middle digit 4.at n=7A082440
- Palindromic primes p with property that another palindromic prime with as many digits can be obtained by using all the digits of p with a different frequency >=1 (every digit is used at least once).at n=32A082807
- Palindromic primes which are a member of a twin prime pair.at n=26A083840
- Palindromic primes p such that p+2 is also a prime: members of A083840 which are the smaller member of a twin prime pair.at n=14A083841
- Palindromic primes with nonincreasing digits up to the middle and then nondecreasing.at n=20A084837
- Palindromic primes that yield a prime when sandwiched between two 3's. (Prefixing and suffixing a -three' on both sides yields another pal prime).at n=30A088270
- Palindromic primes that yield a prime when sandwiched between two 7's. (Prefixing and suffixing a 'seven' on both sides yields another pal prime).at n=16A088271
- Palindromic primes in which a single digit is sandwiched between strings of 7's.at n=5A088283
- Palindromic primes using at most two distinct digits.at n=36A088562
- Palindromic good primes.at n=8A096473
- Near-repdigit primes with 7 as repeated digit.at n=24A105977
- Primes with at least one digit appearing exactly four times in the decimal expansion.at n=26A161786
- Palindromic primes that are the average of the members of emirp pairs.at n=19A178583
- Primes having only {3, 4, 7} as digits.at n=48A199347