1090986 has 32 divisors (see below), whose sum is σ = 2395008. Its totient is φ = 329280.

The previous prime is 1090979. The next prime is 1090997. The reversal of 1090986 is 6890901.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5440 + ... + 5636.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2^1090986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1090986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197504).

1090986 is an abundant number, since it is smaller than the sum of its proper divisors (1304022).

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

1090986 is a wasteful number, since it uses less digits than its factorization.

1090986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1090986 is about 1044.5027525095. The cubic root of 1090986 is about 102.9452689401.

The spelling of 1090986 in words is "one million, ninety thousand, nine hundred eighty-six".