858895423 has 2 divisors, whose sum is σ = 858895424. Its totient is φ = 858895422.

The previous prime is 858895381. The next prime is 858895439. The reversal of 858895423 is 324598858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 858895423 - 2²⁹ = 322024511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858895223) 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, 429447711 + 429447712.

It is an arithmetic number, because the mean of its divisors is an integer number (429447712).

Almost surely, 2^858895423 is an apocalyptic number.

858895423 is a deficient number, since it is larger than the sum of its proper divisors (1).

858895423 is an equidigital number, since it uses as much as digits as its factorization.

858895423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2764800, while the sum is 52.

The square root of 858895423 is about 29306.9176646061. The cubic root of 858895423 is about 950.5612281214.

The spelling of 858895423 in words is "eight hundred fifty-eight million, eight hundred ninety-five thousand, four hundred twenty-three".