72268791 has 8 divisors (see below), whose sum is σ = 110123904. Its totient is φ = 41296440.

The previous prime is 72268789. The next prime is 72268831. The reversal of 72268791 is 19786227.

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

It is not a de Polignac number, because 72268791 - 2¹ = 72268789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72268711) 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, 1720665 + ... + 1720706.

It is an arithmetic number, because the mean of its divisors is an integer number (13765488).

Almost surely, 2^72268791 is an apocalyptic number.

72268791 is a deficient number, since it is larger than the sum of its proper divisors (37855113).

72268791 is a wasteful number, since it uses less digits than its factorization.

72268791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441381.

The product of its digits is 84672, while the sum is 42.

The square root of 72268791 is about 8501.1052810796. The cubic root of 72268791 is about 416.5338141428.

The spelling of 72268791 in words is "seventy-two million, two hundred sixty-eight thousand, seven hundred ninety-one".