72864951 has 16 divisors (see below), whose sum is σ = 100560768. Its totient is φ = 46893600.

The previous prime is 72864949. The next prime is 72864977. The reversal of 72864951 is 15946827.

It is not a de Polignac number, because 72864951 - 2¹ = 72864949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72864901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12036 + ... + 17046.

It is an arithmetic number, because the mean of its divisors is an integer number (6285048).

Almost surely, 2^72864951 is an apocalyptic number.

72864951 is a deficient number, since it is larger than the sum of its proper divisors (27695817).

72864951 is a wasteful number, since it uses less digits than its factorization.

72864951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its digits is 120960, while the sum is 42.

The square root of 72864951 is about 8536.0969418113. The cubic root of 72864951 is about 417.6760365372.

The spelling of 72864951 in words is "seventy-two million, eight hundred sixty-four thousand, nine hundred fifty-one".