344430887 has 2 divisors, whose sum is σ = 344430888. Its totient is φ = 344430886.

The previous prime is 344430809. The next prime is 344430901. The reversal of 344430887 is 788034443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344430887 - 2⁸ = 344430631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344430487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172215443 + 172215444.

It is an arithmetic number, because the mean of its divisors is an integer number (172215444).

Almost surely, 2^344430887 is an apocalyptic number.

344430887 is a deficient number, since it is larger than the sum of its proper divisors (1).

344430887 is an equidigital number, since it uses as much as digits as its factorization.

344430887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 344430887 is about 18558.8492908370. The cubic root of 344430887 is about 700.9720420839.

The spelling of 344430887 in words is "three hundred forty-four million, four hundred thirty thousand, eight hundred eighty-seven".