72766899 has 12 divisors (see below), whose sum is σ = 105196312. Its totient is φ = 48470400.

The previous prime is 72766877. The next prime is 72766909. The reversal of 72766899 is 99866727.

It is not a de Polignac number, because 72766899 - 2¹⁵ = 72734131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72766699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11139 + ... + 16419.

Almost surely, 2^72766899 is an apocalyptic number.

72766899 is a deficient number, since it is larger than the sum of its proper divisors (32429413).

72766899 is a wasteful number, since it uses less digits than its factorization.

72766899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818 (or 6815 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 72766899 is about 8530.3516340184. The cubic root of 72766899 is about 417.4886014075.

The spelling of 72766899 in words is "seventy-two million, seven hundred sixty-six thousand, eight hundred ninety-nine".