397716012 has 36 divisors (see below), whose sum is σ = 1006758480. Its totient is φ = 132384672.

The previous prime is 397715951. The next prime is 397716013. The reversal of 397716012 is 210617793.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (397716013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19314 + ... + 34182.

Almost surely, 2^397716012 is an apocalyptic number.

It is an amenable number.

397716012 is an abundant number, since it is smaller than the sum of its proper divisors (609042468).

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

397716012 is a wasteful number, since it uses less digits than its factorization.

397716012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15622 (or 15617 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 397716012 is about 19942.8185570646. The cubic root of 397716012 is about 735.4012414223.

The spelling of 397716012 in words is "three hundred ninety-seven million, seven hundred sixteen thousand, twelve".