869363028 has 54 divisors (see below), whose sum is σ = 2240062734. Its totient is φ = 284286912.

The previous prime is 869363023. The next prime is 869363041. The reversal of 869363028 is 820363968.

869363028 is a `hidden beast` number, since 8 + 6 + 9 + 3 + 630 + 2 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 386594244 + 482768784 = 19662^2 + 21972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869363023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96826 + ... + 105422.

Almost surely, 2^869363028 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 869363028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1120031367).

869363028 is an abundant number, since it is smaller than the sum of its proper divisors (1370699706).

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

869363028 is a wasteful number, since it uses less digits than its factorization.

869363028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713 (or 8655 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 869363028 is about 29484.9627437445. The cubic root of 869363028 is about 954.4072335471.

The spelling of 869363028 in words is "eight hundred sixty-nine million, three hundred sixty-three thousand, twenty-eight".