344840623 has 2 divisors, whose sum is σ = 344840624. Its totient is φ = 344840622.

The previous prime is 344840591. The next prime is 344840659. The reversal of 344840623 is 326048443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344840623 - 2⁵ = 344840591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344840123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172420311 + 172420312.

It is an arithmetic number, because the mean of its divisors is an integer number (172420312).

Almost surely, 2^344840623 is an apocalyptic number.

344840623 is a deficient number, since it is larger than the sum of its proper divisors (1).

344840623 is an equidigital number, since it uses as much as digits as its factorization.

344840623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 344840623 is about 18569.8848407846. The cubic root of 344840623 is about 701.2498914064.

The spelling of 344840623 in words is "three hundred forty-four million, eight hundred forty thousand, six hundred twenty-three".