343670631 has 4 divisors (see below), whose sum is σ = 458227512. Its totient is φ = 229113752.

The previous prime is 343670609. The next prime is 343670659. The reversal of 343670631 is 136076343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 343670631 - 2¹⁵ = 343637863 is a prime.

It is a super-2 number, since 2×343670631² = 236219005223876322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343670592 and 343670601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343670231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57278436 + ... + 57278441.

It is an arithmetic number, because the mean of its divisors is an integer number (114556878).

Almost surely, 2^343670631 is an apocalyptic number.

343670631 is a deficient number, since it is larger than the sum of its proper divisors (114556881).

343670631 is a wasteful number, since it uses less digits than its factorization.

343670631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114556880.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 343670631 is about 18538.3556714181. The cubic root of 343670631 is about 700.4559145600.

The spelling of 343670631 in words is "three hundred forty-three million, six hundred seventy thousand, six hundred thirty-one".