343344663 has 24 divisors (see below), whose sum is σ = 515236176. Its totient is φ = 228484800.

The previous prime is 343344647. The next prime is 343344679. The reversal of 343344663 is 366443343.

It is an interprime number because it is at equal distance from previous prime (343344647) and next prime (343344679).

It is not a de Polignac number, because 343344663 - 2⁴ = 343344647 is a prime.

It is a super-2 number, since 2×343344663² = 235771115221167138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343344613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198643 + ... + 200363.

It is an arithmetic number, because the mean of its divisors is an integer number (21468174).

Almost surely, 2^343344663 is an apocalyptic number.

343344663 is a deficient number, since it is larger than the sum of its proper divisors (171891513).

343344663 is an equidigital number, since it uses as much as digits as its factorization.

343344663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557 (or 2545 counting only the distinct ones).

The product of its digits is 186624, while the sum is 36.

The square root of 343344663 is about 18529.5618674593. The cubic root of 343344663 is about 700.2343861359.

The spelling of 343344663 in words is "three hundred forty-three million, three hundred forty-four thousand, six hundred sixty-three".