72743372 has 12 divisors (see below), whose sum is σ = 137093376. Its totient is φ = 33573840.

The previous prime is 72743351. The next prime is 72743393. The reversal of 72743372 is 27334727.

It is an interprime number because it is at equal distance from previous prime (72743351) and next prime (72743393).

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, 699404 + ... + 699507.

It is an arithmetic number, because the mean of its divisors is an integer number (11424448).

Almost surely, 2^72743372 is an apocalyptic number.

It is an amenable number.

72743372 is a deficient number, since it is larger than the sum of its proper divisors (64350004).

72743372 is a wasteful number, since it uses less digits than its factorization.

72743372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398928 (or 1398926 counting only the distinct ones).

The product of its digits is 49392, while the sum is 35.

The square root of 72743372 is about 8528.9725055249. The cubic root of 72743372 is about 417.4436024074.

The spelling of 72743372 in words is "seventy-two million, seven hundred forty-three thousand, three hundred seventy-two".