858470099 has 2 divisors, whose sum is σ = 858470100. Its totient is φ = 858470098.

The previous prime is 858470047. The next prime is 858470143. The reversal of 858470099 is 990074858.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-858470099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (858475099) 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, 429235049 + 429235050.

It is an arithmetic number, because the mean of its divisors is an integer number (429235050).

Almost surely, 2^858470099 is an apocalyptic number.

858470099 is a deficient number, since it is larger than the sum of its proper divisors (1).

858470099 is an equidigital number, since it uses as much as digits as its factorization.

858470099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 858470099 is about 29299.6603905233. The cubic root of 858470099 is about 950.4042966150.

The spelling of 858470099 in words is "eight hundred fifty-eight million, four hundred seventy thousand, ninety-nine".