72906364 has 24 divisors (see below), whose sum is σ = 132074208. Its totient is φ = 35189760.

The previous prime is 72906349. The next prime is 72906367. The reversal of 72906364 is 46360927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72906367) 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, 13617 + ... + 18199.

It is an arithmetic number, because the mean of its divisors is an integer number (5503092).

Almost surely, 2^72906364 is an apocalyptic number.

It is an amenable number.

72906364 is a deficient number, since it is larger than the sum of its proper divisors (59167844).

72906364 is a wasteful number, since it uses less digits than its factorization.

72906364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725 (or 4723 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 72906364 is about 8538.5223545998. The cubic root of 72906364 is about 417.7551506679.

The spelling of 72906364 in words is "seventy-two million, nine hundred six thousand, three hundred sixty-four".