72112884 has 12 divisors (see below), whose sum is σ = 168263424. Its totient is φ = 24037624.

The previous prime is 72112853. The next prime is 72112897. The reversal of 72112884 is 48821127.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 3004692 + ... + 3004715.

It is an arithmetic number, because the mean of its divisors is an integer number (14021952).

Almost surely, 2^72112884 is an apocalyptic number.

It is an amenable number.

72112884 is an abundant number, since it is smaller than the sum of its proper divisors (96150540).

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

72112884 is a wasteful number, since it uses less digits than its factorization.

72112884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009414 (or 6009412 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 72112884 is about 8491.9305225608. The cubic root of 72112884 is about 416.2340660694.

The spelling of 72112884 in words is "seventy-two million, one hundred twelve thousand, eight hundred eighty-four".