72858878 has 8 divisors (see below), whose sum is σ = 109345872. Its totient is φ = 36410256.

The previous prime is 72858857. The next prime is 72858887. The reversal of 72858878 is 87885827.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72858878² = 10616832206837768, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4250 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (13668234).

Almost surely, 2^72858878 is an apocalyptic number.

72858878 is a deficient number, since it is larger than the sum of its proper divisors (36486994).

72858878 is a wasteful number, since it uses less digits than its factorization.

72858878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19186.

The product of its digits is 2007040, while the sum is 53.

The square root of 72858878 is about 8535.7412097603. The cubic root of 72858878 is about 417.6644323434.

The spelling of 72858878 in words is "seventy-two million, eight hundred fifty-eight thousand, eight hundred seventy-eight".