986980 has 24 divisors (see below), whose sum is σ = 2109240. Its totient is φ = 387840.

The previous prime is 986963. The next prime is 986981. The reversal of 986980 is 89689.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53824 + 933156 = 232^2 + 966^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986981) by changing a digit.

986980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 816 + ... + 1624.

It is an arithmetic number, because the mean of its divisors is an integer number (87885).

2⁹⁸⁶⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

986980 is an abundant number, since it is smaller than the sum of its proper divisors (1122260).

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

986980 is a wasteful number, since it uses less digits than its factorization.

986980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 986980 is about 993.4686708699. The cubic root of 986980 is about 99.5641026962.

The spelling of 986980 in words is "nine hundred eighty-six thousand, nine hundred eighty".