343961 has 4 divisors (see below), whose sum is σ = 364212. Its totient is φ = 323712.

The previous prime is 343951. The next prime is 343963. The reversal of 343961 is 169343.

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

It can be written as a sum of positive squares in 2 ways, for example, as 225625 + 118336 = 475^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 343961 - 2⁶ = 343897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 343961.

It is not an unprimeable number, because it can be changed into a prime (343963) 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, 10100 + ... + 10133.

It is an arithmetic number, because the mean of its divisors is an integer number (91053).

2³⁴³⁹⁶¹ is an apocalyptic number.

It is an amenable number.

343961 is a deficient number, since it is larger than the sum of its proper divisors (20251).

343961 is a wasteful number, since it uses less digits than its factorization.

343961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20250.

The product of its digits is 1944, while the sum is 26.

The square root of 343961 is about 586.4818837782. The cubic root of 343961 is about 70.0653131905.

The spelling of 343961 in words is "three hundred forty-three thousand, nine hundred sixty-one".