343880165 has 16 divisors (see below), whose sum is σ = 445179888. Its totient is φ = 254032896.

The previous prime is 343880149. The next prime is 343880167. The reversal of 343880165 is 561088343.

It can be written as a sum of positive squares in 8 ways, for example, as 667489 + 343212676 = 817^2 + 18526^2 .

It is a cyclic number.

It is not a de Polignac number, because 343880165 - 2⁴ = 343880149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343880167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33662 + ... + 42671.

It is an arithmetic number, because the mean of its divisors is an integer number (27823743).

Almost surely, 2^343880165 is an apocalyptic number.

It is an amenable number.

343880165 is a deficient number, since it is larger than the sum of its proper divisors (101299723).

343880165 is a wasteful number, since it uses less digits than its factorization.

343880165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76408.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 343880165 is about 18544.0061745029. The cubic root of 343880165 is about 700.5982402816.

The spelling of 343880165 in words is "three hundred forty-three million, eight hundred eighty thousand, one hundred sixty-five".