72317294 has 16 divisors (see below), whose sum is σ = 124305408. Its totient is φ = 30909912.

The previous prime is 72317257. The next prime is 72317309. The reversal of 72317294 is 49271327.

It is a super-2 number, since 2×72317294² = 10459582022964872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382 + ... + 12105.

It is an arithmetic number, because the mean of its divisors is an integer number (7769088).

Almost surely, 2^72317294 is an apocalyptic number.

72317294 is a deficient number, since it is larger than the sum of its proper divisors (51988114).

72317294 is a wasteful number, since it uses less digits than its factorization.

72317294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13879.

The product of its digits is 21168, while the sum is 35.

The square root of 72317294 is about 8503.9575492826. The cubic root of 72317294 is about 416.6269784775.

The spelling of 72317294 in words is "seventy-two million, three hundred seventeen thousand, two hundred ninety-four".