869115 has 16 divisors (see below), whose sum is σ = 1497888. Its totient is φ = 427776.

The previous prime is 869081. The next prime is 869119. The reversal of 869115 is 511968.

It is a happy number.

It is not a de Polignac number, because 869115 - 2⁹ = 868603 is a prime.

869115 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2034 + ... + 2423.

It is an arithmetic number, because the mean of its divisors is an integer number (93618).

2⁸⁶⁹¹¹⁵ is an apocalyptic number.

869115 is a deficient number, since it is larger than the sum of its proper divisors (628773).

869115 is a wasteful number, since it uses less digits than its factorization.

869115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478.

The product of its digits is 2160, while the sum is 30.

The square root of 869115 is about 932.2633748035. The cubic root of 869115 is about 95.4316461252.

The spelling of 869115 in words is "eight hundred sixty-nine thousand, one hundred fifteen".