344705407 has 2 divisors, whose sum is σ = 344705408. Its totient is φ = 344705406.

The previous prime is 344705401. The next prime is 344705411. The reversal of 344705407 is 704507443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344705407 - 2⁷ = 344705279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344705401) 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, 172352703 + 172352704.

It is an arithmetic number, because the mean of its divisors is an integer number (172352704).

Almost surely, 2^344705407 is an apocalyptic number.

344705407 is a deficient number, since it is larger than the sum of its proper divisors (1).

344705407 is an equidigital number, since it uses as much as digits as its factorization.

344705407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 344705407 is about 18566.2437504197. The cubic root of 344705407 is about 701.1582233574.

The spelling of 344705407 in words is "three hundred forty-four million, seven hundred five thousand, four hundred seven".