71985876 has 48 divisors (see below), whose sum is σ = 171225600. Its totient is φ = 23535072.

The previous prime is 71985863. The next prime is 71985877. The reversal of 71985876 is 67858917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71985877) 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, 171595 + ... + 172013.

It is an arithmetic number, because the mean of its divisors is an integer number (3567200).

Almost surely, 2^71985876 is an apocalyptic number.

It is an amenable number.

71985876 is an abundant number, since it is smaller than the sum of its proper divisors (99239724).

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

71985876 is a wasteful number, since it uses less digits than its factorization.

71985876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The square root of 71985876 is about 8484.4490687375. The cubic root of 71985876 is about 415.9895599574.

The spelling of 71985876 in words is "seventy-one million, nine hundred eighty-five thousand, eight hundred seventy-six".