331872933 has 12 divisors (see below), whose sum is σ = 514741920. Its totient is φ = 189641592.

The previous prime is 331872923. The next prime is 331872973. The reversal of 331872933 is 339278133.

It is not a de Polignac number, because 331872933 - 2¹⁴ = 331856549 is a prime.

It is a super-2 number, since 2×331872933² = 220279287316044978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331872891 and 331872900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331872913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1128673 + ... + 1128966.

It is an arithmetic number, because the mean of its divisors is an integer number (42895160).

Almost surely, 2^331872933 is an apocalyptic number.

It is an amenable number.

331872933 is a deficient number, since it is larger than the sum of its proper divisors (182868987).

331872933 is a wasteful number, since it uses less digits than its factorization.

331872933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257656 (or 2257649 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 331872933 is about 18217.3799707861. The cubic root of 331872933 is about 692.3472069250.

The spelling of 331872933 in words is "three hundred thirty-one million, eight hundred seventy-two thousand, nine hundred thirty-three".