73971372 has 24 divisors (see below), whose sum is σ = 172748016. Its totient is φ = 24635968.

The previous prime is 73971353. The next prime is 73971383. The reversal of 73971372 is 27317937.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 73971372.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19018 + ... + 22574.

It is an arithmetic number, because the mean of its divisors is an integer number (7197834).

Almost surely, 2^73971372 is an apocalyptic number.

It is an amenable number.

73971372 is an abundant number, since it is smaller than the sum of its proper divisors (98776644).

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

73971372 is a wasteful number, since it uses less digits than its factorization.

73971372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297 (or 5295 counting only the distinct ones).

The product of its digits is 55566, while the sum is 39.

The square root of 73971372 is about 8600.6611373778. The cubic root of 73971372 is about 419.7794987689.

The spelling of 73971372 in words is "seventy-three million, nine hundred seventy-one thousand, three hundred seventy-two".