791273923 has 4 divisors (see below), whose sum is σ = 863207928. Its totient is φ = 719339920.

The previous prime is 791273893. The next prime is 791273933. The reversal of 791273923 is 329372197.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791273923 is a prime.

It is a super-2 number, since 2×791273923² = 1252228842439619858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 791273923.

It is not an unprimeable number, because it can be changed into a prime (791273933) 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, 35966986 + ... + 35967007.

It is an arithmetic number, because the mean of its divisors is an integer number (215801982).

Almost surely, 2^791273923 is an apocalyptic number.

791273923 is a deficient number, since it is larger than the sum of its proper divisors (71934005).

791273923 is a wasteful number, since it uses less digits than its factorization.

791273923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71934004.

The product of its digits is 142884, while the sum is 43.

The square root of 791273923 is about 28129.5915896410. The cubic root of 791273923 is about 924.9301814359.

The spelling of 791273923 in words is "seven hundred ninety-one million, two hundred seventy-three thousand, nine hundred twenty-three".