344353393 has 2 divisors, whose sum is σ = 344353394. Its totient is φ = 344353392.

The previous prime is 344353379. The next prime is 344353403. The reversal of 344353393 is 393353443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313750369 + 30603024 = 17713^2 + 5532^2 .

It is a cyclic number.

It is not a de Polignac number, because 344353393 - 2⁹ = 344352881 is a prime.

It is a super-2 number, since 2×344353393² = 237158518541224898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (344353313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172176696 + 172176697.

It is an arithmetic number, because the mean of its divisors is an integer number (172176697).

Almost surely, 2^344353393 is an apocalyptic number.

It is an amenable number.

344353393 is a deficient number, since it is larger than the sum of its proper divisors (1).

344353393 is an equidigital number, since it uses as much as digits as its factorization.

344353393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 37.

The square root of 344353393 is about 18556.7613823102. The cubic root of 344353393 is about 700.9194672385.

Subtracting 344353393 from its reverse (393353443), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 344353393 in words is "three hundred forty-four million, three hundred fifty-three thousand, three hundred ninety-three".