791783231 has 4 divisors (see below), whose sum is σ = 801322872. Its totient is φ = 782243592.

The previous prime is 791783191. The next prime is 791783261. The reversal of 791783231 is 132387197.

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

It is a cyclic number.

It is not a de Polignac number, because 791783231 - 2¹⁰ = 791782207 is a prime.

It is a super-2 number, since 2×791783231² = 1253841369785598722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791783261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4769696 + ... + 4769861.

It is an arithmetic number, because the mean of its divisors is an integer number (200330718).

Almost surely, 2^791783231 is an apocalyptic number.

791783231 is a deficient number, since it is larger than the sum of its proper divisors (9539641).

791783231 is an equidigital number, since it uses as much as digits as its factorization.

791783231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9539640.

The product of its digits is 63504, while the sum is 41.

The square root of 791783231 is about 28138.6430198757. The cubic root of 791783231 is about 925.1285844134.

The spelling of 791783231 in words is "seven hundred ninety-one million, seven hundred eighty-three thousand, two hundred thirty-one".