344521799 has 2 divisors, whose sum is σ = 344521800. Its totient is φ = 344521798.

The previous prime is 344521777. The next prime is 344521829. The reversal of 344521799 is 997125443.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344521799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344521739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172260899 + 172260900.

It is an arithmetic number, because the mean of its divisors is an integer number (172260900).

Almost surely, 2^344521799 is an apocalyptic number.

344521799 is a deficient number, since it is larger than the sum of its proper divisors (1).

344521799 is an equidigital number, since it uses as much as digits as its factorization.

344521799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 344521799 is about 18561.2984190223. The cubic root of 344521799 is about 701.0337101540.

The spelling of 344521799 in words is "three hundred forty-four million, five hundred twenty-one thousand, seven hundred ninety-nine".