396593956 has 18 divisors (see below), whose sum is σ = 762870710. Its totient is φ = 180269760.

The previous prime is 396593941. The next prime is 396594019. The reversal of 396593956 is 659395693.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 392040000 + 4553956 = 19800^2 + 2134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 396593897 and 396593906.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409221 + ... + 410188.

Almost surely, 2^396593956 is an apocalyptic number.

It is an amenable number.

396593956 is a deficient number, since it is larger than the sum of its proper divisors (366276754).

396593956 is a wasteful number, since it uses less digits than its factorization.

396593956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819435 (or 819422 counting only the distinct ones).

The product of its digits is 5904900, while the sum is 55.

The square root of 396593956 is about 19914.6668563649. Note that the first 3 decimals coincide. The cubic root of 396593956 is about 734.7090066247.

The spelling of 396593956 in words is "three hundred ninety-six million, five hundred ninety-three thousand, nine hundred fifty-six".