73217372 has 24 divisors (see below), whose sum is σ = 134002176. Its totient is φ = 34938288.

The previous prime is 73217369. The next prime is 73217383. The reversal of 73217372 is 27371237.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75233 + ... + 76199.

It is an arithmetic number, because the mean of its divisors is an integer number (5583424).

Almost surely, 2^73217372 is an apocalyptic number.

It is an amenable number.

73217372 is a deficient number, since it is larger than the sum of its proper divisors (60784804).

73217372 is a wasteful number, since it uses less digits than its factorization.

73217372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1815 counting only the distinct ones).

The product of its digits is 12348, while the sum is 32.

The square root of 73217372 is about 8556.7150238862. The cubic root of 73217372 is about 418.3483356612.

The spelling of 73217372 in words is "seventy-three million, two hundred seventeen thousand, three hundred seventy-two".