342321047 has 2 divisors, whose sum is σ = 342321048. Its totient is φ = 342321046.

The previous prime is 342321041. The next prime is 342321071. The reversal of 342321047 is 740123243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342321047 - 2¹⁰ = 342320023 is a prime.

It is a super-3 number, since 3×342321047³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342321041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171160523 + 171160524.

It is an arithmetic number, because the mean of its divisors is an integer number (171160524).

Almost surely, 2^342321047 is an apocalyptic number.

342321047 is a deficient number, since it is larger than the sum of its proper divisors (1).

342321047 is an equidigital number, since it uses as much as digits as its factorization.

342321047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 342321047 is about 18501.9200895475. The cubic root of 342321047 is about 699.5378221232.

The spelling of 342321047 in words is "three hundred forty-two million, three hundred twenty-one thousand, forty-seven".