71879976 has 48 divisors (see below), whose sum is σ = 222487200. Its totient is φ = 20536992.

The previous prime is 71879971. The next prime is 71879989. The reversal of 71879976 is 67997817.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (71879971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70806 + ... + 71813.

It is an arithmetic number, because the mean of its divisors is an integer number (4635150).

Almost surely, 2^71879976 is an apocalyptic number.

It is an amenable number.

71879976 is an abundant number, since it is smaller than the sum of its proper divisors (150607224).

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

71879976 is a wasteful number, since it uses less digits than its factorization.

71879976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142638 (or 142631 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 71879976 is about 8478.2059422970. The cubic root of 71879976 is about 415.7854693908.

The spelling of 71879976 in words is "seventy-one million, eight hundred seventy-nine thousand, nine hundred seventy-six".