342791 has 2 divisors, whose sum is σ = 342792. Its totient is φ = 342790.

The previous prime is 342761. The next prime is 342799. The reversal of 342791 is 197243.

It is a strong prime.

It is an emirp because it is prime and its reverse (197243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342791.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342791.

It is not a weakly prime, because it can be changed into another prime (342799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171395 + 171396.

It is an arithmetic number, because the mean of its divisors is an integer number (171396).

2³⁴²⁷⁹¹ is an apocalyptic number.

342791 is a deficient number, since it is larger than the sum of its proper divisors (1).

342791 is an equidigital number, since it uses as much as digits as its factorization.

342791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 342791 is about 585.4835608281. The cubic root of 342791 is about 69.9857794242.

The spelling of 342791 in words is "three hundred forty-two thousand, seven hundred ninety-one".