2343621491 has 2 divisors, whose sum is σ = 2343621492. Its totient is φ = 2343621490.

The previous prime is 2343621487. The next prime is 2343621493. The reversal of 2343621491 is 1941263432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2343621491 - 2² = 2343621487 is a prime.

It is a Sophie Germain prime.

Together with 2343621493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2343621493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171810745 + 1171810746.

It is an arithmetic number, because the mean of its divisors is an integer number (1171810746).

Almost surely, 2^2343621491 is an apocalyptic number.

2343621491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2343621491 is an equidigital number, since it uses as much as digits as its factorization.

2343621491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 2343621491 is about 48410.9645741541. The cubic root of 2343621491 is about 1328.2989334896.

The spelling of 2343621491 in words is "two billion, three hundred forty-three million, six hundred twenty-one thousand, four hundred ninety-one".