397484892 has 36 divisors (see below), whose sum is σ = 1148290416. Its totient is φ = 113567040.

The previous prime is 397484863. The next prime is 397484903. The reversal of 397484892 is 298484793.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788409 + ... + 788912.

It is an arithmetic number, because the mean of its divisors is an integer number (31896956).

Almost surely, 2^397484892 is an apocalyptic number.

It is an amenable number.

397484892 is an abundant number, since it is smaller than the sum of its proper divisors (750805524).

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

397484892 is a wasteful number, since it uses less digits than its factorization.

397484892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577338 (or 1577333 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 397484892 is about 19937.0231479025. The cubic root of 397484892 is about 735.2587621458.

Subtracting from 397484892 its reverse (298484793), we obtain a palindrome (99000099).

The spelling of 397484892 in words is "three hundred ninety-seven million, four hundred eighty-four thousand, eight hundred ninety-two".