342394817 has 2 divisors, whose sum is σ = 342394818. Its totient is φ = 342394816.

The previous prime is 342394799. The next prime is 342394849. The reversal of 342394817 is 718493243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328189456 + 14205361 = 18116^2 + 3769^2 .

It is a cyclic number.

It is not a de Polignac number, because 342394817 - 2¹² = 342390721 is a prime.

It is not a weakly prime, because it can be changed into another prime (342394867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171197408 + 171197409.

It is an arithmetic number, because the mean of its divisors is an integer number (171197409).

Almost surely, 2^342394817 is an apocalyptic number.

It is an amenable number.

342394817 is a deficient number, since it is larger than the sum of its proper divisors (1).

342394817 is an equidigital number, since it uses as much as digits as its factorization.

342394817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 342394817 is about 18503.9135590285. The cubic root of 342394817 is about 699.5880685211.

The spelling of 342394817 in words is "three hundred forty-two million, three hundred ninety-four thousand, eight hundred seventeen".