72504237 has 8 divisors (see below), whose sum is σ = 104108704. Its totient is φ = 44617968.

The previous prime is 72504217. The next prime is 72504239. The reversal of 72504237 is 73240527.

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

It is not a de Polignac number, because 72504237 - 2²² = 68309933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72504239) 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, 929503 + ... + 929580.

It is an arithmetic number, because the mean of its divisors is an integer number (13013588).

Almost surely, 2^72504237 is an apocalyptic number.

It is an amenable number.

72504237 is a deficient number, since it is larger than the sum of its proper divisors (31604467).

72504237 is a wasteful number, since it uses less digits than its factorization.

72504237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859099.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 72504237 is about 8514.9419845352. The cubic root of 72504237 is about 416.9856685262.

The spelling of 72504237 in words is "seventy-two million, five hundred four thousand, two hundred thirty-seven".