344685663 has 12 divisors (see below), whose sum is σ = 569005008. Its totient is φ = 196963200.

The previous prime is 344685661. The next prime is 344685703. The reversal of 344685663 is 366586443.

It is not a de Polignac number, because 344685663 - 2¹ = 344685661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344685661) 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 in 11 ways as a sum of consecutive naturals, for example, 2735538 + ... + 2735663.

It is an arithmetic number, because the mean of its divisors is an integer number (47417084).

Almost surely, 2^344685663 is an apocalyptic number.

344685663 is a deficient number, since it is larger than the sum of its proper divisors (224319345).

344685663 is a wasteful number, since it uses less digits than its factorization.

344685663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471214 (or 5471211 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 344685663 is about 18565.7120251285. The cubic root of 344685663 is about 701.1448361462.

The spelling of 344685663 in words is "three hundred forty-four million, six hundred eighty-five thousand, six hundred sixty-three".