985980 has 24 divisors (see below), whose sum is σ = 2760912. Its totient is φ = 262912.

The previous prime is 985979. The next prime is 985981. The reversal of 985980 is 89589.

It is an interprime number because it is at equal distance from previous prime (985979) and next prime (985981).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8157 + ... + 8276.

It is an arithmetic number, because the mean of its divisors is an integer number (115038).

2⁹⁸⁵⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

985980 is an abundant number, since it is smaller than the sum of its proper divisors (1774932).

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

985980 is a wasteful number, since it uses less digits than its factorization.

985980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16445 (or 16443 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 985980 is about 992.9652561898. The cubic root of 985980 is about 99.5304654906.

The spelling of 985980 in words is "nine hundred eighty-five thousand, nine hundred eighty".