72678879 has 24 divisors (see below), whose sum is σ = 129208352. Its totient is φ = 38335680.

The previous prime is 72678871. The next prime is 72678883. The reversal of 72678879 is 97887627.

It is not a de Polignac number, because 72678879 - 2³ = 72678871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72678871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43552 + ... + 45189.

Almost surely, 2^72678879 is an apocalyptic number.

72678879 is a deficient number, since it is larger than the sum of its proper divisors (56529473).

72678879 is a wasteful number, since it uses less digits than its factorization.

72678879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88767 (or 88764 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 72678879 is about 8525.1908483036. The cubic root of 72678879 is about 417.3201998683.

The spelling of 72678879 in words is "seventy-two million, six hundred seventy-eight thousand, eight hundred seventy-nine".