72786886 has 8 divisors (see below), whose sum is σ = 109364400. Its totient is φ = 36332088.

The previous prime is 72786871. The next prime is 72786893. The reversal of 72786886 is 68868727.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29181 + ... + 31576.

It is an arithmetic number, because the mean of its divisors is an integer number (13670550).

Almost surely, 2^72786886 is an apocalyptic number.

72786886 is a deficient number, since it is larger than the sum of its proper divisors (36577514).

72786886 is a wasteful number, since it uses less digits than its factorization.

72786886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61358.

The product of its digits is 1806336, while the sum is 52.

The square root of 72786886 is about 8531.5230762156. The cubic root of 72786886 is about 417.5268219946.

The spelling of 72786886 in words is "seventy-two million, seven hundred eighty-six thousand, eight hundred eighty-six".