72722616 has 32 divisors (see below), whose sum is σ = 182044800. Its totient is φ = 24209120.

The previous prime is 72722603. The next prime is 72722623. The reversal of 72722616 is 61622727.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23275 + ... + 26213.

It is an arithmetic number, because the mean of its divisors is an integer number (5688900).

Almost surely, 2^72722616 is an apocalyptic number.

It is an amenable number.

72722616 is an abundant number, since it is smaller than the sum of its proper divisors (109322184).

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

72722616 is a wasteful number, since it uses less digits than its factorization.

72722616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3975 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 72722616 is about 8527.7556250165. The cubic root of 72722616 is about 417.4038953139.

The spelling of 72722616 in words is "seventy-two million, seven hundred twenty-two thousand, six hundred sixteen".