71879612 has 12 divisors (see below), whose sum is σ = 143759280. Its totient is φ = 30805536.

The previous prime is 71879611. The next prime is 71879627. The reversal of 71879612 is 21697817.

71879612 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71879612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71879611) by changing a digit.

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, 1283537 + ... + 1283592.

It is an arithmetic number, because the mean of its divisors is an integer number (11979940).

Almost surely, 2^71879612 is an apocalyptic number.

It is an amenable number.

71879612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71879612 is a wasteful number, since it uses less digits than its factorization.

71879612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567140 (or 2567138 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 71879612 is about 8478.1844754641. The cubic root of 71879612 is about 415.7847675441.

The spelling of 71879612 in words is "seventy-one million, eight hundred seventy-nine thousand, six hundred twelve".