72757459 has 2 divisors, whose sum is σ = 72757460. Its totient is φ = 72757458.

The previous prime is 72757427. The next prime is 72757483. The reversal of 72757459 is 95475727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72757459 - 2⁵ = 72757427 is a prime.

It is not a weakly prime, because it can be changed into another prime (72758459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36378729 + 36378730.

It is an arithmetic number, because the mean of its divisors is an integer number (36378730).

Almost surely, 2^72757459 is an apocalyptic number.

72757459 is a deficient number, since it is larger than the sum of its proper divisors (1).

72757459 is an equidigital number, since it uses as much as digits as its factorization.

72757459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 617400, while the sum is 46.

The square root of 72757459 is about 8529.7982977325. The cubic root of 72757459 is about 417.4705471233.

The spelling of 72757459 in words is "seventy-two million, seven hundred fifty-seven thousand, four hundred fifty-nine".