344351393 has 2 divisors, whose sum is σ = 344351394. Its totient is φ = 344351392.

The previous prime is 344351387. The next prime is 344351437. The reversal of 344351393 is 393153443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195804049 + 148547344 = 13993^2 + 12188^2 .

It is an emirp because it is prime and its reverse (393153443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344351393 is a prime.

It is a super-2 number, since 2×344351393² = 237155763722080898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (344351993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172175696 + 172175697.

It is an arithmetic number, because the mean of its divisors is an integer number (172175697).

Almost surely, 2^344351393 is an apocalyptic number.

It is an amenable number.

344351393 is a deficient number, since it is larger than the sum of its proper divisors (1).

344351393 is an equidigital number, since it uses as much as digits as its factorization.

344351393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 35.

The square root of 344351393 is about 18556.7074935183. The cubic root of 344351393 is about 700.9181102589.

The spelling of 344351393 in words is "three hundred forty-four million, three hundred fifty-one thousand, three hundred ninety-three".