985984 has 16 divisors (see below), whose sum is σ = 1964520. Its totient is φ = 492928.

The previous prime is 985981. The next prime is 985991. The reversal of 985984 is 489589.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 985984.

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 as a sum of consecutive naturals, namely, 3724 + ... + 3979.

2⁹⁸⁵⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

985984 is a deficient number, since it is larger than the sum of its proper divisors (978536).

985984 is an equidigital number, since it uses as much as digits as its factorization.

985984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717 (or 7705 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 985984 is about 992.9672703569. The cubic root of 985984 is about 99.5306000847.

The spelling of 985984 in words is "nine hundred eighty-five thousand, nine hundred eighty-four".