858944086 has 32 divisors (see below), whose sum is σ = 1729905408. Its totient is φ = 308910240.

The previous prime is 858944081. The next prime is 858944147. The reversal of 858944086 is 680449858.

858944086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858944081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212520 + ... + 216523.

It is an arithmetic number, because the mean of its divisors is an integer number (54059544).

Almost surely, 2^858944086 is an apocalyptic number.

858944086 is an abundant number, since it is smaller than the sum of its proper divisors (870961322).

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

858944086 is a wasteful number, since it uses less digits than its factorization.

858944086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429076.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The square root of 858944086 is about 29307.7478834523. The cubic root of 858944086 is about 950.5791799722.

The spelling of 858944086 in words is "eight hundred fifty-eight million, nine hundred forty-four thousand, eighty-six".