163793916 has 72 divisors (see below), whose sum is σ = 486433584. Its totient is φ = 45815040.

The previous prime is 163793899. The next prime is 163793921. The reversal of 163793916 is 619397361.

163793916 is a `hidden beast` number, since 1 + 637 + 9 + 3 + 9 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10761 + ... + 21056.

It is an arithmetic number, because the mean of its divisors is an integer number (6756022).

Almost surely, 2^163793916 is an apocalyptic number.

It is an amenable number.

163793916 is an abundant number, since it is smaller than the sum of its proper divisors (322639668).

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

163793916 is a wasteful number, since it uses less digits than its factorization.

163793916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31851 (or 31846 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 163793916 is about 12798.1997171477. The cubic root of 163793916 is about 547.1409943942.

The spelling of 163793916 in words is "one hundred sixty-three million, seven hundred ninety-three thousand, nine hundred sixteen".