72844765 has 16 divisors (see below), whose sum is σ = 105160320. Its totient is φ = 47321280.

The previous prime is 72844753. The next prime is 72844771. The reversal of 72844765 is 56744827.

It is not a de Polignac number, because 72844765 - 2¹³ = 72836573 is a prime.

It is a congruent number.

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, 54106 + ... + 55435.

It is an arithmetic number, because the mean of its divisors is an integer number (6572520).

Almost surely, 2^72844765 is an apocalyptic number.

It is an amenable number.

72844765 is a deficient number, since it is larger than the sum of its proper divisors (32315555).

72844765 is a wasteful number, since it uses less digits than its factorization.

72844765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109572.

The product of its digits is 376320, while the sum is 43.

The square root of 72844765 is about 8534.9144694016. The cubic root of 72844765 is about 417.6374629521.

The spelling of 72844765 in words is "seventy-two million, eight hundred forty-four thousand, seven hundred sixty-five".