72732723 has 16 divisors (see below), whose sum is σ = 111632640. Its totient is φ = 41260896.

The previous prime is 72732707. The next prime is 72732731. The reversal of 72732723 is 32723727.

It is not a de Polignac number, because 72732723 - 2⁴ = 72732707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72732223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9540 + ... + 15377.

It is an arithmetic number, because the mean of its divisors is an integer number (6977040).

Almost surely, 2^72732723 is an apocalyptic number.

72732723 is a deficient number, since it is larger than the sum of its proper divisors (38899917).

72732723 is a wasteful number, since it uses less digits than its factorization.

72732723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25066.

The product of its digits is 24696, while the sum is 33.

The square root of 72732723 is about 8528.3481988015. The cubic root of 72732723 is about 417.4232313700.

The spelling of 72732723 in words is "seventy-two million, seven hundred thirty-two thousand, seven hundred twenty-three".