72365331 has 8 divisors (see below), whose sum is σ = 96712704. Its totient is φ = 48130760.

The previous prime is 72365327. The next prime is 72365333. The reversal of 72365331 is 13356327.

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 72365331 - 2² = 72365327 is a prime.

It is a super-2 number, since 2×72365331² = 10473482261479122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72365333) 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, 26691 + ... + 29276.

It is an arithmetic number, because the mean of its divisors is an integer number (12089088).

Almost surely, 2^72365331 is an apocalyptic number.

72365331 is a deficient number, since it is larger than the sum of its proper divisors (24347373).

72365331 is a wasteful number, since it uses less digits than its factorization.

72365331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56401.

The product of its digits is 11340, while the sum is 30.

The square root of 72365331 is about 8506.7814712734. The cubic root of 72365331 is about 416.7192066724.

The spelling of 72365331 in words is "seventy-two million, three hundred sixty-five thousand, three hundred thirty-one".