71976872 has 16 divisors (see below), whose sum is σ = 147225600. Its totient is φ = 32716720.

The previous prime is 71976871. The next prime is 71976901. The reversal of 71976872 is 27867917.

It is not an unprimeable number, because it can be changed into a prime (71976871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408872 + ... + 409047.

It is an arithmetic number, because the mean of its divisors is an integer number (9201600).

Almost surely, 2^71976872 is an apocalyptic number.

It is an amenable number.

71976872 is an abundant number, since it is smaller than the sum of its proper divisors (75248728).

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

71976872 is a wasteful number, since it uses less digits than its factorization.

71976872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817936 (or 817932 counting only the distinct ones).

The product of its digits is 296352, while the sum is 47.

The square root of 71976872 is about 8483.9184343085. The cubic root of 71976872 is about 415.9722152301.

The spelling of 71976872 in words is "seventy-one million, nine hundred seventy-six thousand, eight hundred seventy-two".