1089876 has 12 divisors (see below), whose sum is σ = 2543072. Its totient is φ = 363288.

The previous prime is 1089863. The next prime is 1089877. The reversal of 1089876 is 6789801.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45400 + ... + 45423.

2^1089876 is an apocalyptic number.

It is an amenable number.

1089876 is an abundant number, since it is smaller than the sum of its proper divisors (1453196).

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

1089876 is a wasteful number, since it uses less digits than its factorization.

1089876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90830 (or 90828 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1089876 is about 1043.9712639723. The cubic root of 1089876 is about 102.9103439506.

The spelling of 1089876 in words is "one million, eighty-nine thousand, eight hundred seventy-six".