342838247 has 2 divisors, whose sum is σ = 342838248. Its totient is φ = 342838246.

The previous prime is 342838229. The next prime is 342838273. The reversal of 342838247 is 742838243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342838247 - 2²⁴ = 326061031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342838217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171419123 + 171419124.

It is an arithmetic number, because the mean of its divisors is an integer number (171419124).

Almost surely, 2^342838247 is an apocalyptic number.

342838247 is a deficient number, since it is larger than the sum of its proper divisors (1).

342838247 is an equidigital number, since it uses as much as digits as its factorization.

342838247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 41.

The square root of 342838247 is about 18515.8917419605. The cubic root of 342838247 is about 699.8899466440.

The spelling of 342838247 in words is "three hundred forty-two million, eight hundred thirty-eight thousand, two hundred forty-seven".