344539873 has 2 divisors, whose sum is σ = 344539874. Its totient is φ = 344539872.

The previous prime is 344539849. The next prime is 344539883. The reversal of 344539873 is 378935443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325730304 + 18809569 = 18048^2 + 4337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344539873 is a prime.

It is a super-2 number, since 2×344539873² = 237415448173712258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (344539813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172269936 + 172269937.

It is an arithmetic number, because the mean of its divisors is an integer number (172269937).

Almost surely, 2^344539873 is an apocalyptic number.

It is an amenable number.

344539873 is a deficient number, since it is larger than the sum of its proper divisors (1).

344539873 is an equidigital number, since it uses as much as digits as its factorization.

344539873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 46.

The square root of 344539873 is about 18561.7852859039. The cubic root of 344539873 is about 701.0459689445.

The spelling of 344539873 in words is "three hundred forty-four million, five hundred thirty-nine thousand, eight hundred seventy-three".