72864275 has 12 divisors (see below), whose sum is σ = 98565864. Its totient is φ = 52992000.

The previous prime is 72864263. The next prime is 72864283. The reversal of 72864275 is 57246827.

It is not a de Polignac number, because 72864275 - 2¹⁰ = 72863251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132206 + ... + 132755.

It is an arithmetic number, because the mean of its divisors is an integer number (8213822).

Almost surely, 2^72864275 is an apocalyptic number.

72864275 is a deficient number, since it is larger than the sum of its proper divisors (25701589).

72864275 is a wasteful number, since it uses less digits than its factorization.

72864275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264982 (or 264977 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 72864275 is about 8536.0573451682. The cubic root of 72864275 is about 417.6747448788.

The spelling of 72864275 in words is "seventy-two million, eight hundred sixty-four thousand, two hundred seventy-five".