72310879 has 8 divisors (see below), whose sum is σ = 75235328. Its totient is φ = 69423480.

The previous prime is 72310871. The next prime is 72310883. The reversal of 72310879 is 97801327.

72310879 = 402² + 403² + ... + 655².

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 72310879 - 2³ = 72310871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72310871) 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, 5247 + ... + 13120.

It is an arithmetic number, because the mean of its divisors is an integer number (9404416).

Almost surely, 2^72310879 is an apocalyptic number.

72310879 is a deficient number, since it is larger than the sum of its proper divisors (2924449).

72310879 is a wasteful number, since it uses less digits than its factorization.

72310879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18525.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 72310879 is about 8503.5803635880. The cubic root of 72310879 is about 416.6146589665.

The spelling of 72310879 in words is "seventy-two million, three hundred ten thousand, eight hundred seventy-nine".