72264772 has 6 divisors (see below), whose sum is σ = 126463358. Its totient is φ = 36132384.

The previous prime is 72264767. The next prime is 72264791. The reversal of 72264772 is 27746227.

It can be written as a sum of positive squares in only one way, i.e., 39363076 + 32901696 = 6274^2 + 5736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033093 + ... + 9033100.

Almost surely, 2^72264772 is an apocalyptic number.

It is an amenable number.

72264772 is a deficient number, since it is larger than the sum of its proper divisors (54198586).

72264772 is a wasteful number, since it uses less digits than its factorization.

72264772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18066197 (or 18066195 counting only the distinct ones).

The product of its digits is 65856, while the sum is 37.

The square root of 72264772 is about 8500.8688967658. The cubic root of 72264772 is about 416.5260925965.

The spelling of 72264772 in words is "seventy-two million, two hundred sixty-four thousand, seven hundred seventy-two".