531993972 has 12 divisors (see below), whose sum is σ = 1241319296. Its totient is φ = 177331320.

The previous prime is 531993961. The next prime is 531994051. The reversal of 531993972 is 279399135.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22166404 + ... + 22166427.

Almost surely, 2^531993972 is an apocalyptic number.

It is an amenable number.

531993972 is an abundant number, since it is smaller than the sum of its proper divisors (709325324).

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

531993972 is a wasteful number, since it uses less digits than its factorization.

531993972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44332838 (or 44332836 counting only the distinct ones).

The product of its digits is 459270, while the sum is 48.

The square root of 531993972 is about 23064.9945154990. The cubic root of 531993972 is about 810.2808414972.

The spelling of 531993972 in words is "five hundred thirty-one million, nine hundred ninety-three thousand, nine hundred seventy-two".