791231 has 16 divisors (see below), whose sum is σ = 982080. Its totient is φ = 622080.

The previous prime is 791227. The next prime is 791233. The reversal of 791231 is 132197.

It is a cyclic number.

It is not a de Polignac number, because 791231 - 2² = 791227 is a prime.

It is a super-2 number, since 2×791231² = 1252092990722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 791197 and 791206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7205 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (61380).

2⁷⁹¹²³¹ is an apocalyptic number.

791231 is a deficient number, since it is larger than the sum of its proper divisors (190849).

791231 is a wasteful number, since it uses less digits than its factorization.

791231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its digits is 378, while the sum is 23.

The square root of 791231 is about 889.5116637796. The cubic root of 791231 is about 92.4913456719.

The spelling of 791231 in words is "seven hundred ninety-one thousand, two hundred thirty-one".