858041117 has 2 divisors, whose sum is σ = 858041118. Its totient is φ = 858041116.

The previous prime is 858041113. The next prime is 858041123. The reversal of 858041117 is 711140858.

858041117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562923076 + 295118041 = 23726^2 + 17179^2 .

It is a cyclic number.

It is not a de Polignac number, because 858041117 - 2² = 858041113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858041111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429020558 + 429020559.

It is an arithmetic number, because the mean of its divisors is an integer number (429020559).

Almost surely, 2^858041117 is an apocalyptic number.

It is an amenable number.

858041117 is a deficient number, since it is larger than the sum of its proper divisors (1).

858041117 is an equidigital number, since it uses as much as digits as its factorization.

858041117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 35.

The square root of 858041117 is about 29292.3388789629. The cubic root of 858041117 is about 950.2459629055.

The spelling of 858041117 in words is "eight hundred fifty-eight million, forty-one thousand, one hundred seventeen".