72791306 has 16 divisors (see below), whose sum is σ = 126023040. Its totient is φ = 30886800.

The previous prime is 72791287. The next prime is 72791333. The reversal of 72791306 is 60319727.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24326 + ... + 27153.

It is an arithmetic number, because the mean of its divisors is an integer number (7876440).

Almost surely, 2^72791306 is an apocalyptic number.

72791306 is a deficient number, since it is larger than the sum of its proper divisors (53231734).

72791306 is a wasteful number, since it uses less digits than its factorization.

72791306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51589.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 72791306 is about 8531.7821116107. The cubic root of 72791306 is about 417.5352732936.

The spelling of 72791306 in words is "seventy-two million, seven hundred ninety-one thousand, three hundred six".