3491291879 has 2 divisors, whose sum is σ = 3491291880. Its totient is φ = 3491291878.

The previous prime is 3491291851. The next prime is 3491291891. The reversal of 3491291879 is 9781921943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3491291879 - 2⁸ = 3491291623 is a prime.

It is a super-3 number, since 3×3491291879³ (a number of 30 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3491291879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3491291809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745645939 + 1745645940.

It is an arithmetic number, because the mean of its divisors is an integer number (1745645940).

Almost surely, 2^3491291879 is an apocalyptic number.

3491291879 is a deficient number, since it is larger than the sum of its proper divisors (1).

3491291879 is an equidigital number, since it uses as much as digits as its factorization.

3491291879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 53.

The square root of 3491291879 is about 59087.1549408160. The cubic root of 3491291879 is about 1517.0342504659.

The spelling of 3491291879 in words is "three billion, four hundred ninety-one million, two hundred ninety-one thousand, eight hundred seventy-nine".