791886331 has 2 divisors, whose sum is σ = 791886332. Its totient is φ = 791886330.

The previous prime is 791886253. The next prime is 791886353. The reversal of 791886331 is 133688197.

It is a strong prime.

It is an emirp because it is prime and its reverse (133688197) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791886331 is a prime.

It is a super-2 number, since 2×791886331² = 1254167922449283122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (791886131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395943165 + 395943166.

It is an arithmetic number, because the mean of its divisors is an integer number (395943166).

Almost surely, 2^791886331 is an apocalyptic number.

791886331 is a deficient number, since it is larger than the sum of its proper divisors (1).

791886331 is an equidigital number, since it uses as much as digits as its factorization.

791886331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 791886331 is about 28140.4749604551. The cubic root of 791886331 is about 925.1687370771.

It can be divided in two parts, 7918 and 86331, that added together give a palindrome (94249).

The spelling of 791886331 in words is "seven hundred ninety-one million, eight hundred eighty-six thousand, three hundred thirty-one".