72914289 has 16 divisors (see below), whose sum is σ = 111472512. Its totient is φ = 41528448.

The previous prime is 72914279. The next prime is 72914293. The reversal of 72914289 is 98241927.

It is not a de Polignac number, because 72914289 - 2¹¹ = 72912241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72914289.

It is not an unprimeable number, because it can be changed into a prime (72914279) 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, 1027 + ... + 12119.

It is an arithmetic number, because the mean of its divisors is an integer number (6967032).

Almost surely, 2^72914289 is an apocalyptic number.

It is an amenable number.

72914289 is a deficient number, since it is larger than the sum of its proper divisors (38558223).

72914289 is a wasteful number, since it uses less digits than its factorization.

72914289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11416.

The product of its digits is 72576, while the sum is 42.

The square root of 72914289 is about 8538.9864152603. The cubic root of 72914289 is about 417.7702869305.

The spelling of 72914289 in words is "seventy-two million, nine hundred fourteen thousand, two hundred eighty-nine".