72738259 has 8 divisors (see below), whose sum is σ = 82801152. Its totient is φ = 63250440.

The previous prime is 72738229. The next prime is 72738269. The reversal of 72738259 is 95283727.

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

It is not a de Polignac number, because 72738259 - 2⁵ = 72738227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72738229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143499 + ... + 144004.

It is an arithmetic number, because the mean of its divisors is an integer number (10350144).

Almost surely, 2^72738259 is an apocalyptic number.

72738259 is a deficient number, since it is larger than the sum of its proper divisors (10062893).

72738259 is a wasteful number, since it uses less digits than its factorization.

72738259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287537.

The product of its digits is 211680, while the sum is 43.

The square root of 72738259 is about 8528.6727572349. The cubic root of 72738259 is about 417.4338217264.

The spelling of 72738259 in words is "seventy-two million, seven hundred thirty-eight thousand, two hundred fifty-nine".