73815868 has 24 divisors (see below), whose sum is σ = 147928032. Its totient is φ = 31571904.

The previous prime is 73815857. The next prime is 73815871. The reversal of 73815868 is 86851837.

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, 13230 + ... + 17962.

It is an arithmetic number, because the mean of its divisors is an integer number (6163668).

Almost surely, 2^73815868 is an apocalyptic number.

It is an amenable number.

73815868 is an abundant number, since it is smaller than the sum of its proper divisors (74112164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73815868 is a wasteful number, since it uses less digits than its factorization.

73815868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301 (or 5299 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 73815868 is about 8591.6161459879. The cubic root of 73815868 is about 419.4851362998.

The spelling of 73815868 in words is "seventy-three million, eight hundred fifteen thousand, eight hundred sixty-eight".