343872065 has 4 divisors (see below), whose sum is σ = 412646484. Its totient is φ = 275097648.

The previous prime is 343872049. The next prime is 343872083. The reversal of 343872065 is 560278343.

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 160757041 + 183115024 = 12679^2 + 13532^2 .

It is a cyclic number.

It is not a de Polignac number, because 343872065 - 2⁴ = 343872049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34387202 + ... + 34387211.

It is an arithmetic number, because the mean of its divisors is an integer number (103161621).

Almost surely, 2^343872065 is an apocalyptic number.

It is an amenable number.

343872065 is a deficient number, since it is larger than the sum of its proper divisors (68774419).

343872065 is an equidigital number, since it uses as much as digits as its factorization.

343872065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68774418.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 343872065 is about 18543.7877738072. The cubic root of 343872065 is about 700.5927394406.

The spelling of 343872065 in words is "three hundred forty-three million, eight hundred seventy-two thousand, sixty-five".