342878563 has 2 divisors, whose sum is σ = 342878564. Its totient is φ = 342878562.

The previous prime is 342878539. The next prime is 342878567. The reversal of 342878563 is 365878243.

It is a strong prime.

It is an emirp because it is prime and its reverse (365878243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342878563 - 2⁹ = 342878051 is a prime.

It is not a weakly prime, because it can be changed into another prime (342878567) 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, 171439281 + 171439282.

It is an arithmetic number, because the mean of its divisors is an integer number (171439282).

Almost surely, 2^342878563 is an apocalyptic number.

342878563 is a deficient number, since it is larger than the sum of its proper divisors (1).

342878563 is an equidigital number, since it uses as much as digits as its factorization.

342878563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 46.

The square root of 342878563 is about 18516.9803963821. The cubic root of 342878563 is about 699.9173800448.

The spelling of 342878563 in words is "three hundred forty-two million, eight hundred seventy-eight thousand, five hundred sixty-three".