72788726 has 8 divisors (see below), whose sum is σ = 109255080. Its totient is φ = 36370368.

The previous prime is 72788719. The next prime is 72788741. The reversal of 72788726 is 62788727.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7931 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (13656885).

Almost surely, 2^72788726 is an apocalyptic number.

72788726 is a deficient number, since it is larger than the sum of its proper divisors (36466354).

72788726 is a wasteful number, since it uses less digits than its factorization.

72788726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23998.

The product of its digits is 526848, while the sum is 47.

The square root of 72788726 is about 8531.6309109103. The cubic root of 72788726 is about 417.5303402240.

Subtracting from 72788726 its reverse (62788727), we obtain a palindrome (9999999).

The spelling of 72788726 in words is "seventy-two million, seven hundred eighty-eight thousand, seven hundred twenty-six".