858884012 has 12 divisors (see below), whose sum is σ = 1717768080. Its totient is φ = 368093136.

The previous prime is 858883973. The next prime is 858884017. The reversal of 858884012 is 210488858.

It is a happy number.

858884012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

858884012 is an admirable number.

It is a super-2 number, since 2×858884012² = 1475363492138432288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (858884017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15337187 + ... + 15337242.

It is an arithmetic number, because the mean of its divisors is an integer number (143147340).

Almost surely, 2^858884012 is an apocalyptic number.

It is an amenable number.

858884012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

858884012 is a wasteful number, since it uses less digits than its factorization.

858884012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30674440 (or 30674438 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 44.

The square root of 858884012 is about 29306.7229829608. The cubic root of 858884012 is about 950.5570184889.

The spelling of 858884012 in words is "eight hundred fifty-eight million, eight hundred eighty-four thousand, twelve".