342517859 has 2 divisors, whose sum is σ = 342517860. Its totient is φ = 342517858.

The previous prime is 342517849. The next prime is 342517871. The reversal of 342517859 is 958715243.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342517859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342517829) by changing a digit.

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 as a sum of consecutive naturals, namely, 171258929 + 171258930.

It is an arithmetic number, because the mean of its divisors is an integer number (171258930).

Almost surely, 2^342517859 is an apocalyptic number.

342517859 is a deficient number, since it is larger than the sum of its proper divisors (1).

342517859 is an equidigital number, since it uses as much as digits as its factorization.

342517859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 44.

The square root of 342517859 is about 18507.2380165167. The cubic root of 342517859 is about 699.6718591257.

The spelling of 342517859 in words is "three hundred forty-two million, five hundred seventeen thousand, eight hundred fifty-nine".