342869 has 2 divisors, whose sum is σ = 342870. Its totient is φ = 342868.

The previous prime is 342863. The next prime is 342871. The reversal of 342869 is 968243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 56644 = 535^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 342869 - 2¹² = 338773 is a prime.

It is a super-2 number, since 2×342869² = 235118302322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 342871, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

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 342869.

It is not a weakly prime, because it can be changed into another prime (342863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171434 + 171435.

It is an arithmetic number, because the mean of its divisors is an integer number (171435).

2³⁴²⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

342869 is a deficient number, since it is larger than the sum of its proper divisors (1).

342869 is an equidigital number, since it uses as much as digits as its factorization.

342869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 342869 is about 585.5501686448. The cubic root of 342869 is about 69.9910873006.

The spelling of 342869 in words is "three hundred forty-two thousand, eight hundred sixty-nine".