72900099 has 12 divisors (see below), whose sum is σ = 105399216. Its totient is φ = 48554352.

The previous prime is 72900071. The next prime is 72900119. The reversal of 72900099 is 99000927.

It is not a de Polignac number, because 72900099 - 2⁵ = 72900067 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72900049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8322 + ... + 14664.

It is an arithmetic number, because the mean of its divisors is an integer number (8783268).

Almost surely, 2^72900099 is an apocalyptic number.

72900099 is a deficient number, since it is larger than the sum of its proper divisors (32499117).

72900099 is a wasteful number, since it uses less digits than its factorization.

72900099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626 (or 7623 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 72900099 is about 8538.1554799617. The cubic root of 72900099 is about 417.7431841268.

The spelling of 72900099 in words is "seventy-two million, nine hundred thousand, ninety-nine".