344426287 has 2 divisors, whose sum is σ = 344426288. Its totient is φ = 344426286.

The previous prime is 344426279. The next prime is 344426309. The reversal of 344426287 is 782624443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344426287 - 2³ = 344426279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344426207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172213143 + 172213144.

It is an arithmetic number, because the mean of its divisors is an integer number (172213144).

Almost surely, 2^344426287 is an apocalyptic number.

344426287 is a deficient number, since it is larger than the sum of its proper divisors (1).

344426287 is an equidigital number, since it uses as much as digits as its factorization.

344426287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 40.

The square root of 344426287 is about 18558.7253603258. The cubic root of 344426287 is about 700.9689214910.

The spelling of 344426287 in words is "three hundred forty-four million, four hundred twenty-six thousand, two hundred eighty-seven".