72907896 has 16 divisors (see below), whose sum is σ = 182269800. Its totient is φ = 24302624.

The previous prime is 72907867. The next prime is 72907949. The reversal of 72907896 is 69870927.

It is a super-2 number, since 2×72907896² = 10631122598293632, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 3 ways as a sum of consecutive naturals, for example, 1518891 + ... + 1518938.

Almost surely, 2^72907896 is an apocalyptic number.

It is an amenable number.

72907896 is an abundant number, since it is smaller than the sum of its proper divisors (109361904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72907896 is a wasteful number, since it uses less digits than its factorization.

72907896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037838 (or 3037834 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 72907896 is about 8538.6120652012. The cubic root of 72907896 is about 417.7580767792.

It can be divided in two parts, 7290789 and 6, that multiplied together give a palindrome (43744734).

The spelling of 72907896 in words is "seventy-two million, nine hundred seven thousand, eight hundred ninety-six".