72906908 has 12 divisors (see below), whose sum is σ = 128249520. Its totient is φ = 36264192.

The previous prime is 72906907. The next prime is 72906913. The reversal of 72906908 is 80960927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72906901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46448 + ... + 47991.

It is an arithmetic number, because the mean of its divisors is an integer number (10687460).

Almost surely, 2^72906908 is an apocalyptic number.

It is an amenable number.

72906908 is a deficient number, since it is larger than the sum of its proper divisors (55342612).

72906908 is a wasteful number, since it uses less digits than its factorization.

72906908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94636 (or 94634 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 72906908 is about 8538.5542101693. The cubic root of 72906908 is about 417.7561897095.

The spelling of 72906908 in words is "seventy-two million, nine hundred six thousand, nine hundred eight".