343275817 has 4 divisors (see below), whose sum is σ = 343363780. Its totient is φ = 343187856.

The previous prime is 343275811. The next prime is 343275833. The reversal of 343275817 is 718572343.

It is a happy number.

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 87403801 + 255872016 = 9349^2 + 15996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343275817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343275817.

It is not an unprimeable number, because it can be changed into a prime (343275811) 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, 37842 + ... + 46027.

It is an arithmetic number, because the mean of its divisors is an integer number (85840945).

Almost surely, 2^343275817 is an apocalyptic number.

It is an amenable number.

343275817 is a deficient number, since it is larger than the sum of its proper divisors (87963).

343275817 is an equidigital number, since it uses as much as digits as its factorization.

343275817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87962.

The product of its digits is 141120, while the sum is 40.

The square root of 343275817 is about 18527.7040401664. The cubic root of 343275817 is about 700.1875803415.

The spelling of 343275817 in words is "three hundred forty-three million, two hundred seventy-five thousand, eight hundred seventeen".