1989852 has 24 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 654576.

The previous prime is 1989847. The next prime is 1989863. The reversal of 1989852 is 2589891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 1997.

It is an arithmetic number, because the mean of its divisors is an integer number (196000).

2^1989852 is an apocalyptic number.

1989852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1989852 is an abundant number, since it is smaller than the sum of its proper divisors (2714148).

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

1989852 is a wasteful number, since it uses less digits than its factorization.

1989852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185 (or 2183 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The square root of 1989852 is about 1410.6211397820. The cubic root of 1989852 is about 125.7786489091.

The spelling of 1989852 in words is "one million, nine hundred eighty-nine thousand, eight hundred fifty-two".