397786032 has 80 divisors (see below), whose sum is σ = 1304916480. Its totient is φ = 113652288.

The previous prime is 397786027. The next prime is 397786057. The reversal of 397786032 is 230687793.

It is a happy number.

397786032 is a `hidden beast` number, since 39 + 7 + 7 + 8 + 603 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62748 + ... + 68795.

It is an arithmetic number, because the mean of its divisors is an integer number (16311456).

Almost surely, 2^397786032 is an apocalyptic number.

It is an amenable number.

397786032 is an abundant number, since it is smaller than the sum of its proper divisors (907130448).

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

397786032 is a wasteful number, since it uses less digits than its factorization.

397786032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131567 (or 131555 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 397786032 is about 19944.5739989602. The cubic root of 397786032 is about 735.4443959780. Note that the first 3 decimals are identical.

It can be divided in two parts, 3977 and 86032, that added together give a palindrome (90009).

The spelling of 397786032 in words is "three hundred ninety-seven million, seven hundred eighty-six thousand, thirty-two".