3442347991 has 2 divisors, whose sum is σ = 3442347992. Its totient is φ = 3442347990.

The previous prime is 3442347989. The next prime is 3442348001. The reversal of 3442347991 is 1997432443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3442347991 - 2¹ = 3442347989 is a prime.

It is a super-2 number, since 2×3442347991² = 23699519382283472162, which contains 22 as substring.

Together with 3442347989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3442342991) 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 as a sum of consecutive naturals, namely, 1721173995 + 1721173996.

It is an arithmetic number, because the mean of its divisors is an integer number (1721173996).

Almost surely, 2^3442347991 is an apocalyptic number.

3442347991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3442347991 is an equidigital number, since it uses as much as digits as its factorization.

3442347991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 46.

The square root of 3442347991 is about 58671.5262371791. The cubic root of 3442347991 is about 1509.9118395088.

The spelling of 3442347991 in words is "three billion, four hundred forty-two million, three hundred forty-seven thousand, nine hundred ninety-one".