72725622 has 16 divisors (see below), whose sum is σ = 146864640. Its totient is φ = 24006312.

The previous prime is 72725617. The next prime is 72725629. The reversal of 72725622 is 22652727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72725629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58222 + ... + 59457.

It is an arithmetic number, because the mean of its divisors is an integer number (9179040).

Almost surely, 2^72725622 is an apocalyptic number.

72725622 is an abundant number, since it is smaller than the sum of its proper divisors (74139018).

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

72725622 is a wasteful number, since it uses less digits than its factorization.

72725622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117787.

The product of its digits is 23520, while the sum is 33.

The square root of 72725622 is about 8527.9318712100. The cubic root of 72725622 is about 417.4096463850.

The spelling of 72725622 in words is "seventy-two million, seven hundred twenty-five thousand, six hundred twenty-two".