626396393 has 8 divisors (see below), whose sum is σ = 717126912. Its totient is φ = 535977216.

The previous prime is 626396377. The next prime is 626396423. The reversal of 626396393 is 393693626.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 626396393 - 2⁴ = 626396377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626390393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73505 + ... + 81582.

It is an arithmetic number, because the mean of its divisors is an integer number (89640864).

Almost surely, 2^626396393 is an apocalyptic number.

It is an amenable number.

626396393 is a deficient number, since it is larger than the sum of its proper divisors (90730519).

626396393 is a wasteful number, since it uses less digits than its factorization.

626396393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155671.

The product of its digits is 944784, while the sum is 47.

The square root of 626396393 is about 25027.9122780946. The cubic root of 626396393 is about 855.6242459650.

The spelling of 626396393 in words is "six hundred twenty-six million, three hundred ninety-six thousand, three hundred ninety-three".