626369 has 4 divisors (see below), whose sum is σ = 639744. Its totient is φ = 612996.

The previous prime is 626363. The next prime is 626377. The reversal of 626369 is 963626.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 963626 = 2 ⋅481813.

It is a cyclic number.

It is not a de Polignac number, because 626369 - 2⁸ = 626113 is a prime.

It is a super-2 number, since 2×626369² = 784676248322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (626363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6617 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (159936).

2⁶²⁶³⁶⁹ is an apocalyptic number.

It is an amenable number.

626369 is a deficient number, since it is larger than the sum of its proper divisors (13375).

626369 is a wasteful number, since it uses less digits than its factorization.

626369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13374.

The product of its digits is 11664, while the sum is 32.

The square root of 626369 is about 791.4347730546. The cubic root of 626369 is about 85.5611773322.

The spelling of 626369 in words is "six hundred twenty-six thousand, three hundred sixty-nine".