913021872 has 40 divisors (see below), whose sum is σ = 2695589376. Its totient is φ = 260863296.

The previous prime is 913021867. The next prime is 913021891. The reversal of 913021872 is 278120319.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358328 + ... + 1358999.

Almost surely, 2^913021872 is an apocalyptic number.

It is an amenable number.

913021872 is an abundant number, since it is smaller than the sum of its proper divisors (1782567504).

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

913021872 is a wasteful number, since it uses less digits than its factorization.

913021872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717345 (or 2717339 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 913021872 is about 30216.2517860836. The cubic root of 913021872 is about 970.1235793945.

The spelling of 913021872 in words is "nine hundred thirteen million, twenty-one thousand, eight hundred seventy-two".