349810939 has 2 divisors, whose sum is σ = 349810940. Its totient is φ = 349810938.

The previous prime is 349810931. The next prime is 349810943. The reversal of 349810939 is 939018943.

It is a strong prime.

It is an emirp because it is prime and its reverse (939018943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349810939 - 2³ = 349810931 is a prime.

It is not a weakly prime, because it can be changed into another prime (349810931) 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, 174905469 + 174905470.

It is an arithmetic number, because the mean of its divisors is an integer number (174905470).

Almost surely, 2^349810939 is an apocalyptic number.

349810939 is a deficient number, since it is larger than the sum of its proper divisors (1).

349810939 is an equidigital number, since it uses as much as digits as its factorization.

349810939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 349810939 is about 18703.2333835623. The cubic root of 349810939 is about 704.6029580330.

The spelling of 349810939 in words is "three hundred forty-nine million, eight hundred ten thousand, nine hundred thirty-nine".