72730606 has 16 divisors (see below), whose sum is σ = 117936000. Its totient is φ = 33439968.

The previous prime is 72730601. The next prime is 72730631. The reversal of 72730606 is 60603727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72730601) 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, 1795 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (7371000).

Almost surely, 2^72730606 is an apocalyptic number.

72730606 is a deficient number, since it is larger than the sum of its proper divisors (45205394).

72730606 is a wasteful number, since it uses less digits than its factorization.

72730606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10683.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 72730606 is about 8528.2240824218. The cubic root of 72730606 is about 417.4191814113.

The spelling of 72730606 in words is "seventy-two million, seven hundred thirty thousand, six hundred six".