342691 has 2 divisors, whose sum is σ = 342692. Its totient is φ = 342690.

The previous prime is 342679. The next prime is 342697. The reversal of 342691 is 196243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342691 - 2⁵ = 342659 is a prime.

It is not a weakly prime, because it can be changed into another prime (342697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171345 + 171346.

It is an arithmetic number, because the mean of its divisors is an integer number (171346).

2³⁴²⁶⁹¹ is an apocalyptic number.

342691 is a deficient number, since it is larger than the sum of its proper divisors (1).

342691 is an equidigital number, since it uses as much as digits as its factorization.

342691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 342691 is about 585.3981551047. The cubic root of 342691 is about 69.9789732764.

The spelling of 342691 in words is "three hundred forty-two thousand, six hundred ninety-one".