982890 has 48 divisors (see below), whose sum is σ = 2609568. Its totient is φ = 256608.

The previous prime is 982871. The next prime is 982903. The reversal of 982890 is 98289.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

982890 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5949 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (54366).

2⁹⁸²⁸⁹⁰ is an apocalyptic number.

982890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 982890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1304784).

982890 is an abundant number, since it is smaller than the sum of its proper divisors (1626678).

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

982890 is a wasteful number, since it uses less digits than its factorization.

982890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 982890 is about 991.4080895373. The cubic root of 982890 is about 99.4263825887.

The spelling of 982890 in words is "nine hundred eighty-two thousand, eight hundred ninety".