344940091 has 2 divisors, whose sum is σ = 344940092. Its totient is φ = 344940090.

The previous prime is 344940061. The next prime is 344940103. The reversal of 344940091 is 190049443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344940091 - 2⁷ = 344939963 is a prime.

It is not a weakly prime, because it can be changed into another prime (344940031) 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, 172470045 + 172470046.

It is an arithmetic number, because the mean of its divisors is an integer number (172470046).

Almost surely, 2^344940091 is an apocalyptic number.

344940091 is a deficient number, since it is larger than the sum of its proper divisors (1).

344940091 is an equidigital number, since it uses as much as digits as its factorization.

344940091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 344940091 is about 18572.5628549212. The cubic root of 344940091 is about 701.3173092357.

The spelling of 344940091 in words is "three hundred forty-four million, nine hundred forty thousand, ninety-one".