869079 has 16 divisors (see below), whose sum is σ = 1241600. Its totient is φ = 539136.

The previous prime is 869069. The next prime is 869081. The reversal of 869079 is 970968.

It is not a de Polignac number, because 869079 - 2⁷ = 868951 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4407 + ... + 4599.

It is an arithmetic number, because the mean of its divisors is an integer number (77600).

2⁸⁶⁹⁰⁷⁹ is an apocalyptic number.

869079 is a deficient number, since it is larger than the sum of its proper divisors (372521).

869079 is a wasteful number, since it uses less digits than its factorization.

869079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 869079 is about 932.2440667551. The cubic root of 869079 is about 95.4303284680.

The spelling of 869079 in words is "eight hundred sixty-nine thousand, seventy-nine".