986879 has 4 divisors (see below), whose sum is σ = 1038840. Its totient is φ = 934920.

The previous prime is 986857. The next prime is 986903. The reversal of 986879 is 978689.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 986879 - 2¹² = 982783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25952 + ... + 25989.

It is an arithmetic number, because the mean of its divisors is an integer number (259710).

2⁹⁸⁶⁸⁷⁹ is an apocalyptic number.

986879 is a deficient number, since it is larger than the sum of its proper divisors (51961).

986879 is a wasteful number, since it uses less digits than its factorization.

986879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51960.

The product of its digits is 217728, while the sum is 47.

The square root of 986879 is about 993.4178375689. The cubic root of 986879 is about 99.5607063702.

The spelling of 986879 in words is "nine hundred eighty-six thousand, eight hundred seventy-nine".