72797501 has 16 divisors (see below), whose sum is σ = 85332480. Its totient is φ = 60808320.

The previous prime is 72797449. The next prime is 72797521. The reversal of 72797501 is 10579727.

It is a cyclic number.

It is not a de Polignac number, because 72797501 - 2⁶ = 72797437 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 (72797521) 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, 134291 + ... + 134831.

It is an arithmetic number, because the mean of its divisors is an integer number (5333280).

Almost surely, 2^72797501 is an apocalyptic number.

It is an amenable number.

72797501 is a deficient number, since it is larger than the sum of its proper divisors (12534979).

72797501 is a wasteful number, since it uses less digits than its factorization.

72797501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 72797501 is about 8532.1451581651. The cubic root of 72797501 is about 417.5471179208.

The spelling of 72797501 in words is "seventy-two million, seven hundred ninety-seven thousand, five hundred one".