73321372 has 24 divisors (see below), whose sum is σ = 129965472. Its totient is φ = 36192000.

The previous prime is 73321349. The next prime is 73321387. The reversal of 73321372 is 27312337.

It is a self number, because there is not a number n which added to its sum of digits gives 73321372.

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, 140472 + ... + 140992.

It is an arithmetic number, because the mean of its divisors is an integer number (5415228).

Almost surely, 2^73321372 is an apocalyptic number.

It is an amenable number.

73321372 is a deficient number, since it is larger than the sum of its proper divisors (56644100).

73321372 is a wasteful number, since it uses less digits than its factorization.

73321372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its digits is 5292, while the sum is 28.

The square root of 73321372 is about 8562.7899658931. The cubic root of 73321372 is about 418.5463198366.

The spelling of 73321372 in words is "seventy-three million, three hundred twenty-one thousand, three hundred seventy-two".