869889024 has 176 divisors, whose sum is σ = 2617539840. Its totient is φ = 285327360.

The previous prime is 869889023. The next prime is 869889037. The reversal of 869889024 is 420988968.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869889023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2018089 + ... + 2018519.

Almost surely, 2^869889024 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 869889024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308769920).

869889024 is an abundant number, since it is smaller than the sum of its proper divisors (1747650816).

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

869889024 is a wasteful number, since it uses less digits than its factorization.

869889024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 869889024 is about 29493.8811281255. The cubic root of 869889024 is about 954.5996783446.

The spelling of 869889024 in words is "eight hundred sixty-nine million, eight hundred eighty-nine thousand, twenty-four".