982891 has 12 divisors (see below), whose sum is σ = 1232112. Its totient is φ = 777168.

The previous prime is 982871. The next prime is 982903. The reversal of 982891 is 198289.

It is a de Polignac number, because none of the positive numbers 2^k-982891 is a prime.

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 982891.

It is not an unprimeable number, because it can be changed into a prime (982801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (102676).

2⁹⁸²⁸⁹¹ is an apocalyptic number.

982891 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

982891 is a deficient number, since it is larger than the sum of its proper divisors (249221).

982891 is a wasteful number, since it uses less digits than its factorization.

982891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1563 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 982891 is about 991.4085938704. The cubic root of 982891 is about 99.4264163077.

The spelling of 982891 in words is "nine hundred eighty-two thousand, eight hundred ninety-one".