791431 has 2 divisors, whose sum is σ = 791432. Its totient is φ = 791430.

The previous prime is 791419. The next prime is 791443. The reversal of 791431 is 134197.

It is a balanced prime because it is at equal distance from previous prime (791419) and next prime (791443).

It is a cyclic number.

It is not a de Polignac number, because 791431 - 2¹⁹ = 267143 is a prime.

It is a super-2 number, since 2×791431² = 1252726055522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 791396 and 791405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395715 + 395716.

It is an arithmetic number, because the mean of its divisors is an integer number (395716).

2⁷⁹¹⁴³¹ is an apocalyptic number.

791431 is a deficient number, since it is larger than the sum of its proper divisors (1).

791431 is an equidigital number, since it uses as much as digits as its factorization.

791431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 791431 is about 889.6240779116. The cubic root of 791431 is about 92.4991380489.

The spelling of 791431 in words is "seven hundred ninety-one thousand, four hundred thirty-one".