72913233 has 8 divisors (see below), whose sum is σ = 97259200. Its totient is φ = 48588048.

The previous prime is 72913231. The next prime is 72913297. The reversal of 72913233 is 33231927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72913233 - 2¹ = 72913231 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 72913233.

It is not an unprimeable number, because it can be changed into a prime (72913231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7263 + ... + 14091.

It is an arithmetic number, because the mean of its divisors is an integer number (12157400).

Almost surely, 2^72913233 is an apocalyptic number.

It is an amenable number.

72913233 is a deficient number, since it is larger than the sum of its proper divisors (24345967).

72913233 is a wasteful number, since it uses less digits than its factorization.

72913233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391.

The product of its digits is 6804, while the sum is 30.

The square root of 72913233 is about 8538.9245809996. The cubic root of 72913233 is about 417.7682700988.

The spelling of 72913233 in words is "seventy-two million, nine hundred thirteen thousand, two hundred thirty-three".