343344691 has 4 divisors (see below), whose sum is σ = 343490800. Its totient is φ = 343198584.

The previous prime is 343344679. The next prime is 343344697. The reversal of 343344691 is 196443343.

It is a happy number.

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 343344691 - 2²¹ = 341247539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343344691.

It is not an unprimeable number, because it can be changed into a prime (343344697) 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, 69471 + ... + 74248.

It is an arithmetic number, because the mean of its divisors is an integer number (85872700).

Almost surely, 2^343344691 is an apocalyptic number.

343344691 is a deficient number, since it is larger than the sum of its proper divisors (146109).

343344691 is a wasteful number, since it uses less digits than its factorization.

343344691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146108.

The product of its digits is 93312, while the sum is 37.

The square root of 343344691 is about 18529.5626230087. The cubic root of 343344691 is about 700.2344051707.

It can be divided in two parts, 343344 and 691, that added together give a triangular number (344035 = T₈₂₉).

The spelling of 343344691 in words is "three hundred forty-three million, three hundred forty-four thousand, six hundred ninety-one".