72311084 has 12 divisors (see below), whose sum is σ = 127089144. Its totient is φ = 35999904.

The previous prime is 72311069. The next prime is 72311119. The reversal of 72311084 is 48011327.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37862 + ... + 39725.

It is an arithmetic number, because the mean of its divisors is an integer number (10590762).

Almost surely, 2^72311084 is an apocalyptic number.

It is an amenable number.

72311084 is a deficient number, since it is larger than the sum of its proper divisors (54778060).

72311084 is a wasteful number, since it uses less digits than its factorization.

72311084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77824 (or 77822 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 72311084 is about 8503.5924173258. The cubic root of 72311084 is about 416.6150526644.

The spelling of 72311084 in words is "seventy-two million, three hundred eleven thousand, eighty-four".