72591719 has 2 divisors, whose sum is σ = 72591720. Its totient is φ = 72591718.

The previous prime is 72591707. The next prime is 72591721. The reversal of 72591719 is 91719527.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72591719 - 2²⁴ = 55814503 is a prime.

It is a super-3 number, since 3×72591719³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 72591721, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72591019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36295859 + 36295860.

It is an arithmetic number, because the mean of its divisors is an integer number (36295860).

Almost surely, 2^72591719 is an apocalyptic number.

72591719 is a deficient number, since it is larger than the sum of its proper divisors (1).

72591719 is an equidigital number, since it uses as much as digits as its factorization.

72591719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 41.

The square root of 72591719 is about 8520.0774057517. The cubic root of 72591719 is about 417.1533096651.

The spelling of 72591719 in words is "seventy-two million, five hundred ninety-one thousand, seven hundred nineteen".