869130 has 80 divisors (see below), whose sum is σ = 2482920. Its totient is φ = 217728.

The previous prime is 869119. The next prime is 869131. The reversal of 869130 is 31968.

It can be written as a sum of positive squares in 4 ways, for example, as 826281 + 42849 = 909^2 + 207^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 869094 and 869103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869131) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23472 + ... + 23508.

2⁸⁶⁹¹³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241460).

869130 is an abundant number, since it is smaller than the sum of its proper divisors (1613790).

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

869130 is a wasteful number, since it uses less digits than its factorization.

869130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 869130 is about 932.2714197057. The cubic root of 869130 is about 95.4321951382.

It can be divided in two parts, 869 and 130, that added together give a palindrome (999).

The spelling of 869130 in words is "eight hundred sixty-nine thousand, one hundred thirty".