72272793 has 8 divisors (see below), whose sum is σ = 98414208. Its totient is φ = 47156624.

The previous prime is 72272773. The next prime is 72272801. The reversal of 72272793 is 39727227.

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

It is a cyclic number.

It is not a de Polignac number, because 72272793 - 2⁸ = 72272537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72272773) 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, 256146 + ... + 256427.

It is an arithmetic number, because the mean of its divisors is an integer number (12301776).

Almost surely, 2^72272793 is an apocalyptic number.

It is an amenable number.

72272793 is a deficient number, since it is larger than the sum of its proper divisors (26141415).

72272793 is a wasteful number, since it uses less digits than its factorization.

72272793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512623.

The product of its digits is 74088, while the sum is 39.

The square root of 72272793 is about 8501.3406589784. The cubic root of 72272793 is about 416.5415027431.

The spelling of 72272793 in words is "seventy-two million, two hundred seventy-two thousand, seven hundred ninety-three".