344406817 has 4 divisors (see below), whose sum is σ = 344445120. Its totient is φ = 344368516.

The previous prime is 344406781. The next prime is 344406827. The reversal of 344406817 is 718604443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344406817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344406827) 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 in 3 ways as a sum of consecutive naturals, for example, 2484 + ... + 26362.

It is an arithmetic number, because the mean of its divisors is an integer number (86111280).

Almost surely, 2^344406817 is an apocalyptic number.

It is an amenable number.

344406817 is a deficient number, since it is larger than the sum of its proper divisors (38303).

344406817 is a wasteful number, since it uses less digits than its factorization.

344406817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38302.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 344406817 is about 18558.2008018019. The cubic root of 344406817 is about 700.9557129346.

The spelling of 344406817 in words is "three hundred forty-four million, four hundred six thousand, eight hundred seventeen".