879823 has 16 divisors (see below), whose sum is σ = 1070080. Its totient is φ = 707616.

The previous prime is 879821. The next prime is 879839. The reversal of 879823 is 328978.

It is not a de Polignac number, because 879823 - 2¹ = 879821 is a prime.

It is a super-2 number, since 2×879823² = 1548177022658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879821) 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, 11098 + ... + 11176.

It is an arithmetic number, because the mean of its divisors is an integer number (66880).

2⁸⁷⁹⁸²³ is an apocalyptic number.

879823 is a deficient number, since it is larger than the sum of its proper divisors (190257).

879823 is a wasteful number, since it uses less digits than its factorization.

879823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 24192, while the sum is 37.

The square root of 879823 is about 937.9888059034. The cubic root of 879823 is about 95.8219718520.

The spelling of 879823 in words is "eight hundred seventy-nine thousand, eight hundred twenty-three".