396786874 has 16 divisors (see below), whose sum is σ = 671677920. Its totient is φ = 174138160.

The previous prime is 396786809. The next prime is 396786913. The reversal of 396786874 is 478687693.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310324 + ... + 311599.

It is an arithmetic number, because the mean of its divisors is an integer number (41979870).

Almost surely, 2^396786874 is an apocalyptic number.

396786874 is a deficient number, since it is larger than the sum of its proper divisors (274891046).

396786874 is a wasteful number, since it uses less digits than its factorization.

396786874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621965.

The product of its digits is 12192768, while the sum is 58.

The square root of 396786874 is about 19919.5098835288. The cubic root of 396786874 is about 734.8281172112.

The spelling of 396786874 in words is "three hundred ninety-six million, seven hundred eighty-six thousand, eight hundred seventy-four".