344907091 has 2 divisors, whose sum is σ = 344907092. Its totient is φ = 344907090.

The previous prime is 344907077. The next prime is 344907109. The reversal of 344907091 is 190709443.

Together with next prime (344907109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (190709443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344907091 - 2¹⁹ = 344382803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344907091.

It is not a weakly prime, because it can be changed into another prime (344907041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172453545 + 172453546.

It is an arithmetic number, because the mean of its divisors is an integer number (172453546).

Almost surely, 2^344907091 is an apocalyptic number.

344907091 is a deficient number, since it is larger than the sum of its proper divisors (1).

344907091 is an equidigital number, since it uses as much as digits as its factorization.

344907091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 344907091 is about 18571.6744263946. The cubic root of 344907091 is about 701.2949437971.

The spelling of 344907091 in words is "three hundred forty-four million, nine hundred seven thousand, ninety-one".