343052909 has 4 divisors (see below), whose sum is σ = 343165404. Its totient is φ = 342940416.

The previous prime is 343052893. The next prime is 343052921. The reversal of 343052909 is 909250343.

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 183738025 + 159314884 = 13555^2 + 12622^2 .

It is a cyclic number.

It is not a de Polignac number, because 343052909 - 2⁴ = 343052893 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343052929) 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, 51542 + ... + 57815.

It is an arithmetic number, because the mean of its divisors is an integer number (85791351).

Almost surely, 2^343052909 is an apocalyptic number.

It is an amenable number.

343052909 is a deficient number, since it is larger than the sum of its proper divisors (112495).

343052909 is a wasteful number, since it uses less digits than its factorization.

343052909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112494.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 343052909 is about 18521.6875311080. The cubic root of 343052909 is about 700.0359906665.

The spelling of 343052909 in words is "three hundred forty-three million, fifty-two thousand, nine hundred nine".