397912962 has 32 divisors (see below), whose sum is σ = 823209984. Its totient is φ = 128091600.

The previous prime is 397912961. The next prime is 397913003. The reversal of 397912962 is 269219793.

It is a super-2 number, since 2×397912962² = 316669450655226888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397912961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99787 + ... + 103697.

It is an arithmetic number, because the mean of its divisors is an integer number (25725312).

Almost surely, 2^397912962 is an apocalyptic number.

397912962 is an abundant number, since it is smaller than the sum of its proper divisors (425297022).

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

397912962 is a wasteful number, since it uses less digits than its factorization.

397912962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494.

The product of its digits is 367416, while the sum is 48.

The square root of 397912962 is about 19947.7558136247. The cubic root of 397912962 is about 735.5226122571.

The spelling of 397912962 in words is "three hundred ninety-seven million, nine hundred twelve thousand, nine hundred sixty-two".