344661979 has 2 divisors, whose sum is σ = 344661980. Its totient is φ = 344661978.

The previous prime is 344661971. The next prime is 344661991. The reversal of 344661979 is 979166443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344661979 - 2³ = 344661971 is a prime.

It is not a weakly prime, because it can be changed into another prime (344661971) 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, 172330989 + 172330990.

It is an arithmetic number, because the mean of its divisors is an integer number (172330990).

Almost surely, 2^344661979 is an apocalyptic number.

344661979 is a deficient number, since it is larger than the sum of its proper divisors (1).

344661979 is an equidigital number, since it uses as much as digits as its factorization.

344661979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 344661979 is about 18565.0741716805. The cubic root of 344661979 is about 701.1287767850.

The spelling of 344661979 in words is "three hundred forty-four million, six hundred sixty-one thousand, nine hundred seventy-nine".