342047 has 2 divisors, whose sum is σ = 342048. Its totient is φ = 342046.

The previous prime is 342037. The next prime is 342049. The reversal of 342047 is 740243.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342047 - 2⁶ = 341983 is a prime.

Together with 342049, it forms a pair of twin primes.

It is a Chen prime.

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 342047.

It is not a weakly prime, because it can be changed into another prime (342049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171023 + 171024.

It is an arithmetic number, because the mean of its divisors is an integer number (171024).

2³⁴²⁰⁴⁷ is an apocalyptic number.

342047 is a deficient number, since it is larger than the sum of its proper divisors (1).

342047 is an equidigital number, since it uses as much as digits as its factorization.

342047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 342047 is about 584.8478434602. The cubic root of 342047 is about 69.9351099335.

The spelling of 342047 in words is "three hundred forty-two thousand, forty-seven", and thus it is an iban number.