858898896 has 80 divisors (see below), whose sum is σ = 2297948160. Its totient is φ = 276151680.

The previous prime is 858898891. The next prime is 858898903. The reversal of 858898896 is 698898858.

Its product of digits (79626240) is a multiple of the sum of its prime factors (1944).

It is a self number, because there is not a number n which added to its sum of digits gives 858898896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858898891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563191 + ... + 564713.

It is an arithmetic number, because the mean of its divisors is an integer number (28724352).

Almost surely, 2^858898896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 858898896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148974080).

858898896 is an abundant number, since it is smaller than the sum of its proper divisors (1439049264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

858898896 is a wasteful number, since it uses less digits than its factorization.

858898896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1938 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 69.

The square root of 858898896 is about 29306.9769167685. The cubic root of 858898896 is about 950.5625093386.

The spelling of 858898896 in words is "eight hundred fifty-eight million, eight hundred ninety-eight thousand, eight hundred ninety-six".