344220659 has 2 divisors, whose sum is σ = 344220660. Its totient is φ = 344220658.

The previous prime is 344220649. The next prime is 344220697. The reversal of 344220659 is 956022443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344220659 - 2¹² = 344216563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344220619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172110329 + 172110330.

It is an arithmetic number, because the mean of its divisors is an integer number (172110330).

Almost surely, 2^344220659 is an apocalyptic number.

344220659 is a deficient number, since it is larger than the sum of its proper divisors (1).

344220659 is an equidigital number, since it uses as much as digits as its factorization.

344220659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 344220659 is about 18553.1846053447. The cubic root of 344220659 is about 700.8293971702.

The spelling of 344220659 in words is "three hundred forty-four million, two hundred twenty thousand, six hundred fifty-nine".