73323972 has 36 divisors (see below), whose sum is σ = 187963776. Its totient is φ = 24096240.

The previous prime is 73323947. The next prime is 73323989. The reversal of 73323972 is 27932337.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11788 + ... + 16899.

It is an arithmetic number, because the mean of its divisors is an integer number (5221216).

Almost surely, 2^73323972 is an apocalyptic number.

It is an amenable number.

73323972 is an abundant number, since it is smaller than the sum of its proper divisors (114639804).

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

73323972 is a wasteful number, since it uses less digits than its factorization.

73323972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28768 (or 28763 counting only the distinct ones).

The product of its digits is 47628, while the sum is 36.

The square root of 73323972 is about 8562.9417842235. The cubic root of 73323972 is about 418.5512670415.

The spelling of 73323972 in words is "seventy-three million, three hundred twenty-three thousand, nine hundred seventy-two".