72924807 has 4 divisors (see below), whose sum is σ = 97233080. Its totient is φ = 48616536.

The previous prime is 72924757. The next prime is 72924809. The reversal of 72924807 is 70842927.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72924807 - 2¹⁶ = 72859271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72924809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12154132 + ... + 12154137.

It is an arithmetic number, because the mean of its divisors is an integer number (24308270).

Almost surely, 2^72924807 is an apocalyptic number.

72924807 is a deficient number, since it is larger than the sum of its proper divisors (24308273).

72924807 is a wasteful number, since it uses less digits than its factorization.

72924807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24308272.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 72924807 is about 8539.6022741109. The cubic root of 72924807 is about 417.7903739700.

The spelling of 72924807 in words is "seventy-two million, nine hundred twenty-four thousand, eight hundred seven".