72730337 has 8 divisors (see below), whose sum is σ = 73483200. Its totient is φ = 71981584.

The previous prime is 72730331. The next prime is 72730381. The reversal of 72730337 is 73303727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72730337 - 2²² = 68536033 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (72730331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44114 + ... + 45732.

It is an arithmetic number, because the mean of its divisors is an integer number (9185400).

Almost surely, 2^72730337 is an apocalyptic number.

It is an amenable number.

72730337 is a deficient number, since it is larger than the sum of its proper divisors (752863).

72730337 is a wasteful number, since it uses less digits than its factorization.

72730337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055.

The product of its (nonzero) digits is 18522, while the sum is 32.

The square root of 72730337 is about 8528.2083112457. The cubic root of 72730337 is about 417.4186667912.

The spelling of 72730337 in words is "seventy-two million, seven hundred thirty thousand, three hundred thirty-seven".