791591247 has 12 divisors (see below), whose sum is σ = 1210669200. Its totient is φ = 496684608.

The previous prime is 791591233. The next prime is 791591261. The reversal of 791591247 is 742195197.

It is an interprime number because it is at equal distance from previous prime (791591233) and next prime (791591261).

It is not a de Polignac number, because 791591247 - 2¹⁰ = 791590223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791591267) 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 11 ways as a sum of consecutive naturals, for example, 2586747 + ... + 2587052.

It is an arithmetic number, because the mean of its divisors is an integer number (100889100).

Almost surely, 2^791591247 is an apocalyptic number.

791591247 is a deficient number, since it is larger than the sum of its proper divisors (419077953).

791591247 is a wasteful number, since it uses less digits than its factorization.

791591247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173822 (or 5173819 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 791591247 is about 28135.2314189878. The cubic root of 791591247 is about 925.0538062687.

The spelling of 791591247 in words is "seven hundred ninety-one million, five hundred ninety-one thousand, two hundred forty-seven".