396688712 has 24 divisors (see below), whose sum is σ = 865227510. Its totient is φ = 170009280.

The previous prime is 396688703. The next prime is 396688723. The reversal of 396688712 is 217886693.

It can be written as a sum of positive squares in only one way, i.e., 215678596 + 181010116 = 14686^2 + 13454^2 .

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, 505589 + ... + 506372.

Almost surely, 2^396688712 is an apocalyptic number.

It is an amenable number.

396688712 is an abundant number, since it is smaller than the sum of its proper divisors (468538798).

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

396688712 is a wasteful number, since it uses less digits than its factorization.

396688712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011981 (or 1011970 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 396688712 is about 19917.0457648719. The cubic root of 396688712 is about 734.7675152848.

The spelling of 396688712 in words is "three hundred ninety-six million, six hundred eighty-eight thousand, seven hundred twelve".