72538959 has 4 divisors (see below), whose sum is σ = 96718616. Its totient is φ = 48359304.

The previous prime is 72538951. The next prime is 72539003. The reversal of 72538959 is 95983527.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72538959 - 2³ = 72538951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72538951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12089824 + ... + 12089829.

It is an arithmetic number, because the mean of its divisors is an integer number (24179654).

Almost surely, 2^72538959 is an apocalyptic number.

72538959 is a deficient number, since it is larger than the sum of its proper divisors (24179657).

72538959 is a wasteful number, since it uses less digits than its factorization.

72538959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24179656.

The product of its digits is 680400, while the sum is 48.

The square root of 72538959 is about 8516.9806269593. The cubic root of 72538959 is about 417.0522221804.

The spelling of 72538959 in words is "seventy-two million, five hundred thirty-eight thousand, nine hundred fifty-nine".