343605961 has 8 divisors (see below), whose sum is σ = 346623560. Its totient is φ = 340599168.

The previous prime is 343605931. The next prime is 343605967. The reversal of 343605961 is 169506343.

It can be written as a sum of positive squares in 4 ways, for example, as 18020025 + 325585936 = 4245^2 + 18044^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343605961 - 2⁵ = 343605929 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 343605961.

It is not an unprimeable number, because it can be changed into a prime (343605967) 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 7 ways as a sum of consecutive naturals, for example, 69355 + ... + 74143.

It is an arithmetic number, because the mean of its divisors is an integer number (43327945).

Almost surely, 2^343605961 is an apocalyptic number.

It is an amenable number.

343605961 is a deficient number, since it is larger than the sum of its proper divisors (3017599).

343605961 is a wasteful number, since it uses less digits than its factorization.

343605961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 343605961 is about 18536.6113677770. The cubic root of 343605961 is about 700.4119758568.

The spelling of 343605961 in words is "three hundred forty-three million, six hundred five thousand, nine hundred sixty-one".