72696785 has 16 divisors (see below), whose sum is σ = 99864576. Its totient is φ = 49766208.

The previous prime is 72696779. The next prime is 72696839. The reversal of 72696785 is 58769627.

It is a cyclic number.

It is not a de Polignac number, because 72696785 - 2⁴ = 72696769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25712 + ... + 28398.

It is an arithmetic number, because the mean of its divisors is an integer number (6241536).

Almost surely, 2^72696785 is an apocalyptic number.

It is an amenable number.

72696785 is a deficient number, since it is larger than the sum of its proper divisors (27167791).

72696785 is a wasteful number, since it uses less digits than its factorization.

72696785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472.

The product of its digits is 1270080, while the sum is 50.

The square root of 72696785 is about 8526.2409653962. The cubic root of 72696785 is about 417.3544689802.

The spelling of 72696785 in words is "seventy-two million, six hundred ninety-six thousand, seven hundred eighty-five".