342856207 has 2 divisors, whose sum is σ = 342856208. Its totient is φ = 342856206.

The previous prime is 342856133. The next prime is 342856223. The reversal of 342856207 is 702658243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342856207 - 2²³ = 334467599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342856277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171428103 + 171428104.

It is an arithmetic number, because the mean of its divisors is an integer number (171428104).

Almost surely, 2^342856207 is an apocalyptic number.

342856207 is a deficient number, since it is larger than the sum of its proper divisors (1).

342856207 is an equidigital number, since it uses as much as digits as its factorization.

342856207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 342856207 is about 18516.3767244026. The cubic root of 342856207 is about 699.9021679603.

The spelling of 342856207 in words is "three hundred forty-two million, eight hundred fifty-six thousand, two hundred seven".