879966 has 48 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 265680.

The previous prime is 879961. The next prime is 879973. The reversal of 879966 is 669978.

It is a super-2 number, since 2×879966² = 1548680322312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879961) 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 23 ways as a sum of consecutive naturals, for example, 10561 + ... + 10643.

It is an arithmetic number, because the mean of its divisors is an integer number (43680).

2⁸⁷⁹⁹⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048320).

879966 is an abundant number, since it is smaller than the sum of its proper divisors (1216674).

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

879966 is a wasteful number, since it uses less digits than its factorization.

879966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 138 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 879966 is about 938.0650297287. The cubic root of 879966 is about 95.8271629718.

The spelling of 879966 in words is "eight hundred seventy-nine thousand, nine hundred sixty-six".