982987 has 4 divisors (see below), whose sum is σ = 991800. Its totient is φ = 974176.

The previous prime is 982981. The next prime is 983063. The reversal of 982987 is 789289.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-982987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (982981) 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, 4237 + ... + 4462.

It is an arithmetic number, because the mean of its divisors is an integer number (247950).

2⁹⁸²⁹⁸⁷ is an apocalyptic number.

982987 is a deficient number, since it is larger than the sum of its proper divisors (8813).

982987 is a wasteful number, since it uses less digits than its factorization.

982987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812.

The product of its digits is 72576, while the sum is 43.

The square root of 982987 is about 991.4570086494. The cubic root of 982987 is about 99.4296532300.

The spelling of 982987 in words is "nine hundred eighty-two thousand, nine hundred eighty-seven".