72389459 has 8 divisors (see below), whose sum is σ = 73347120. Its totient is φ = 71437216.

The previous prime is 72389453. The next prime is 72389483. The reversal of 72389459 is 95498327.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72389459 - 2²⁰ = 71340883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72389453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30197 + ... + 32505.

It is an arithmetic number, because the mean of its divisors is an integer number (9168390).

Almost surely, 2^72389459 is an apocalyptic number.

72389459 is a deficient number, since it is larger than the sum of its proper divisors (957661).

72389459 is a wasteful number, since it uses less digits than its factorization.

72389459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709.

The product of its digits is 544320, while the sum is 47.

The square root of 72389459 is about 8508.1995157613. The cubic root of 72389459 is about 416.7655156053.

The spelling of 72389459 in words is "seventy-two million, three hundred eighty-nine thousand, four hundred fifty-nine".