72560931 has 4 divisors (see below), whose sum is σ = 96747912. Its totient is φ = 48373952.

The previous prime is 72560927. The next prime is 72560941. The reversal of 72560931 is 13906527.

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

It is a cyclic number.

It is not a de Polignac number, because 72560931 - 2² = 72560927 is a prime.

It is a super-2 number, since 2×72560931² = 10530177415173522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72560892 and 72560901.

It is not an unprimeable number, because it can be changed into a prime (72560941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12093486 + ... + 12093491.

It is an arithmetic number, because the mean of its divisors is an integer number (24186978).

Almost surely, 2^72560931 is an apocalyptic number.

72560931 is a deficient number, since it is larger than the sum of its proper divisors (24186981).

72560931 is a wasteful number, since it uses less digits than its factorization.

72560931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24186980.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 72560931 is about 8518.2704230378. The cubic root of 72560931 is about 417.0943262052.

The spelling of 72560931 in words is "seventy-two million, five hundred sixty thousand, nine hundred thirty-one".