858969412 has 48 divisors (see below), whose sum is σ = 1761177600. Its totient is φ = 366413376.

The previous prime is 858969409. The next prime is 858969437. The reversal of 858969412 is 214969858.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 858969412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318333 + ... + 321019.

It is an arithmetic number, because the mean of its divisors is an integer number (36691200).

Almost surely, 2^858969412 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 858969412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880588800).

858969412 is an abundant number, since it is smaller than the sum of its proper divisors (902208188).

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

858969412 is a wasteful number, since it uses less digits than its factorization.

858969412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945 (or 2929 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 858969412 is about 29308.1799503142. The cubic root of 858969412 is about 950.5885225019.

The spelling of 858969412 in words is "eight hundred fifty-eight million, nine hundred sixty-nine thousand, four hundred twelve".