72706952 has 8 divisors (see below), whose sum is σ = 136325550. Its totient is φ = 36353472.

The previous prime is 72706927. The next prime is 72706967. The reversal of 72706952 is 25960727.

It can be written as a sum of positive squares in only one way, i.e., 52330756 + 20376196 = 7234^2 + 4514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4544177 + ... + 4544192.

Almost surely, 2^72706952 is an apocalyptic number.

It is an amenable number.

72706952 is a deficient number, since it is larger than the sum of its proper divisors (63618598).

72706952 is a wasteful number, since it uses less digits than its factorization.

72706952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088375 (or 9088371 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 72706952 is about 8526.8371627468. The cubic root of 72706952 is about 417.3739244260.

The spelling of 72706952 in words is "seventy-two million, seven hundred six thousand, nine hundred fifty-two".