626627 has 2 divisors, whose sum is σ = 626628. Its totient is φ = 626626.

The previous prime is 626623. The next prime is 626629. The reversal of 626627 is 726626.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 626627 - 2² = 626623 is a prime.

It is a super-2 number, since 2×626627² = 785322794258, which contains 22 as substring.

Together with 626629, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 626627.

It is not a weakly prime, because it can be changed into another prime (626621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313313 + 313314.

It is an arithmetic number, because the mean of its divisors is an integer number (313314).

2⁶²⁶⁶²⁷ is an apocalyptic number.

626627 is a deficient number, since it is larger than the sum of its proper divisors (1).

626627 is an equidigital number, since it uses as much as digits as its factorization.

626627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 626627 is about 791.5977513864. The cubic root of 626627 is about 85.5729232059.

Subtracting 626627 from its reverse (726626), we obtain a palindrome (99999).

The spelling of 626627 in words is "six hundred twenty-six thousand, six hundred twenty-seven".