343439961 has 16 divisors (see below), whose sum is σ = 466839360. Its totient is φ = 224536320.

The previous prime is 343439927. The next prime is 343439977. The reversal of 343439961 is 169934343.

It is not a de Polignac number, because 343439961 - 2⁶ = 343439897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343439911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34821 + ... + 43581.

It is an arithmetic number, because the mean of its divisors is an integer number (29177460).

Almost surely, 2^343439961 is an apocalyptic number.

It is an amenable number.

343439961 is a deficient number, since it is larger than the sum of its proper divisors (123399399).

343439961 is a wasteful number, since it uses less digits than its factorization.

343439961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016.

The product of its digits is 209952, while the sum is 42.

The square root of 343439961 is about 18532.1332015502. The cubic root of 343439961 is about 700.2991653221.

The spelling of 343439961 in words is "three hundred forty-three million, four hundred thirty-nine thousand, nine hundred sixty-one".