72838759 has 4 divisors (see below), whose sum is σ = 83244304. Its totient is φ = 62433216.

The previous prime is 72838729. The next prime is 72838763. The reversal of 72838759 is 95783827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95783827 = 4603 ⋅20809.

It is a cyclic number.

It is not a de Polignac number, because 72838759 - 2⁹ = 72838247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72838729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5202762 + ... + 5202775.

It is an arithmetic number, because the mean of its divisors is an integer number (20811076).

Almost surely, 2^72838759 is an apocalyptic number.

72838759 is a deficient number, since it is larger than the sum of its proper divisors (10405545).

72838759 is a wasteful number, since it uses less digits than its factorization.

72838759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10405544.

The product of its digits is 846720, while the sum is 49.

The square root of 72838759 is about 8534.5626132802. The cubic root of 72838759 is about 417.6259846643.

The spelling of 72838759 in words is "seventy-two million, eight hundred thirty-eight thousand, seven hundred fifty-nine".