396861756 has 24 divisors (see below), whose sum is σ = 927430224. Its totient is φ = 132084480.

The previous prime is 396861743. The next prime is 396861767. The reversal of 396861756 is 657168693.

It is a junction number, because it is equal to n+sod(n) for n = 396861699 and 396861708.

It is a congruent number.

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, 17085 + ... + 32948.

It is an arithmetic number, because the mean of its divisors is an integer number (38642926).

Almost surely, 2^396861756 is an apocalyptic number.

It is an amenable number.

396861756 is an abundant number, since it is smaller than the sum of its proper divisors (530568468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396861756 is a wasteful number, since it uses less digits than its factorization.

396861756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50701 (or 50699 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 396861756 is about 19921.3894093760. The cubic root of 396861756 is about 734.8743401263.

The spelling of 396861756 in words is "three hundred ninety-six million, eight hundred sixty-one thousand, seven hundred fifty-six".