858556852 has 12 divisors (see below), whose sum is σ = 1513284640. Its totient is φ = 426189816.

The previous prime is 858556841. The next prime is 858556859. The reversal of 858556852 is 258655858.

It is a super-2 number, since 2×858556852² = 1474239736232299808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 858556852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858556859) 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, 771528 + ... + 772639.

Almost surely, 2^858556852 is an apocalyptic number.

It is an amenable number.

858556852 is a deficient number, since it is larger than the sum of its proper divisors (654727788).

858556852 is a wasteful number, since it uses less digits than its factorization.

858556852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544310 (or 1544308 counting only the distinct ones).

The product of its digits is 3840000, while the sum is 52.

The square root of 858556852 is about 29301.1407969041. The cubic root of 858556852 is about 950.4363100176.

The spelling of 858556852 in words is "eight hundred fifty-eight million, five hundred fifty-six thousand, eight hundred fifty-two".