72616922 has 12 divisors (see below), whose sum is σ = 126709290. Its totient is φ = 31121496.

The previous prime is 72616919. The next prime is 72616931. The reversal of 72616922 is 22961627.

It can be written as a sum of positive squares in only one way, i.e., 72097081 + 519841 = 8491^2 + 721^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370397 + ... + 370592.

Almost surely, 2^72616922 is an apocalyptic number.

72616922 is a deficient number, since it is larger than the sum of its proper divisors (54092368).

72616922 is a wasteful number, since it uses less digits than its factorization.

72616922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741005 (or 740998 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 72616922 is about 8521.5563132564. The cubic root of 72616922 is about 417.2015810039.

The spelling of 72616922 in words is "seventy-two million, six hundred sixteen thousand, nine hundred twenty-two".