72536723 has 8 divisors (see below), whose sum is σ = 82954848. Its totient is φ = 62132544.

The previous prime is 72536719. The next prime is 72536759. The reversal of 72536723 is 32763527.

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

It is a cyclic number.

It is not a de Polignac number, because 72536723 - 2² = 72536719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72536713) 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, 12665 + ... + 17477.

It is an arithmetic number, because the mean of its divisors is an integer number (10369356).

Almost surely, 2^72536723 is an apocalyptic number.

72536723 is a deficient number, since it is larger than the sum of its proper divisors (10418125).

72536723 is a wasteful number, since it uses less digits than its factorization.

72536723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973.

The product of its digits is 52920, while the sum is 35.

The square root of 72536723 is about 8516.8493587711. The cubic root of 72536723 is about 417.0479369505.

The spelling of 72536723 in words is "seventy-two million, five hundred thirty-six thousand, seven hundred twenty-three".