344696399 has 2 divisors, whose sum is σ = 344696400. Its totient is φ = 344696398.

The previous prime is 344696393. The next prime is 344696413. The reversal of 344696399 is 993696443.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344696399 - 2⁴ = 344696383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344696399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344696393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172348199 + 172348200.

It is an arithmetic number, because the mean of its divisors is an integer number (172348200).

Almost surely, 2^344696399 is an apocalyptic number.

344696399 is a deficient number, since it is larger than the sum of its proper divisors (1).

344696399 is an equidigital number, since it uses as much as digits as its factorization.

344696399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 53.

The square root of 344696399 is about 18566.0011580308. The cubic root of 344696399 is about 701.1521156413.

The spelling of 344696399 in words is "three hundred forty-four million, six hundred ninety-six thousand, three hundred ninety-nine".