72740501 has 16 divisors (see below), whose sum is σ = 78693120. Its totient is φ = 66992640.

The previous prime is 72740489. The next prime is 72740527. The reversal of 72740501 is 10504727.

It is a cyclic number.

It is not a de Polignac number, because 72740501 - 2¹⁰ = 72739477 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 (72740201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198020 + ... + 198386.

It is an arithmetic number, because the mean of its divisors is an integer number (4918320).

Almost surely, 2^72740501 is an apocalyptic number.

It is an amenable number.

72740501 is a deficient number, since it is larger than the sum of its proper divisors (5952619).

72740501 is a wasteful number, since it uses less digits than its factorization.

72740501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 72740501 is about 8528.8041951964. The cubic root of 72740501 is about 417.4381105148.

The spelling of 72740501 in words is "seventy-two million, seven hundred forty thousand, five hundred one".