986820 has 24 divisors (see below), whose sum is σ = 2763264. Its totient is φ = 263136.

The previous prime is 986819. The next prime is 986837. The reversal of 986820 is 28689.

986820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8164 + ... + 8283.

It is an arithmetic number, because the mean of its divisors is an integer number (115136).

2⁹⁸⁶⁸²⁰ is an apocalyptic number.

It is an amenable number.

986820 is an abundant number, since it is smaller than the sum of its proper divisors (1776444).

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

986820 is a wasteful number, since it uses less digits than its factorization.

986820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16459 (or 16457 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 986820 is about 993.3881416647. The cubic root of 986820 is about 99.5587222706.

The spelling of 986820 in words is "nine hundred eighty-six thousand, eight hundred twenty".