989862 has 24 divisors (see below), whose sum is σ = 2093976. Its totient is φ = 311904.

The previous prime is 989839. The next prime is 989869. The reversal of 989862 is 268989.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989862.

It is not an unprimeable number, because it can be changed into a prime (989869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1938 + ... + 2394.

It is an arithmetic number, because the mean of its divisors is an integer number (87249).

2⁹⁸⁹⁸⁶² is an apocalyptic number.

989862 is an abundant number, since it is smaller than the sum of its proper divisors (1104114).

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

989862 is a wasteful number, since it uses less digits than its factorization.

989862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 481 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 989862 is about 994.9180870805. The cubic root of 989862 is about 99.6609182016.

The spelling of 989862 in words is "nine hundred eighty-nine thousand, eight hundred sixty-two".