72786885 has 8 divisors (see below), whose sum is σ = 116459040. Its totient is φ = 38819664.

The previous prime is 72786871. The next prime is 72786893. The reversal of 72786885 is 58868727.

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

It is not a de Polignac number, because 72786885 - 2⁷ = 72786757 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2426215 + ... + 2426244.

It is an arithmetic number, because the mean of its divisors is an integer number (14557380).

Almost surely, 2^72786885 is an apocalyptic number.

It is an amenable number.

72786885 is a deficient number, since it is larger than the sum of its proper divisors (43672155).

72786885 is a wasteful number, since it uses less digits than its factorization.

72786885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852467.

The product of its digits is 1505280, while the sum is 51.

The square root of 72786885 is about 8531.5230176095. The cubic root of 72786885 is about 417.5268200825.

The spelling of 72786885 in words is "seventy-two million, seven hundred eighty-six thousand, eight hundred eighty-five".