1989876 has 24 divisors (see below), whose sum is σ = 5306560. Its totient is φ = 568512.

The previous prime is 1989863. The next prime is 1989877. The reversal of 1989876 is 6789891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989877) by changing a digit.

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, 11761 + ... + 11928.

2^1989876 is an apocalyptic number.

It is an amenable number.

1989876 is an abundant number, since it is smaller than the sum of its proper divisors (3316684).

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

1989876 is a wasteful number, since it uses less digits than its factorization.

1989876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23703 (or 23701 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 1989876 is about 1410.6296466472. The cubic root of 1989876 is about 125.7791545875.

The spelling of 1989876 in words is "one million, nine hundred eighty-nine thousand, eight hundred seventy-six".