1089994 has 8 divisors (see below), whose sum is σ = 1691460. Its totient is φ = 526176.

The previous prime is 1089967. The next prime is 1090003. The reversal of 1089994 is 4999801.

It can be written as a sum of positive squares in 2 ways, for example, as 1071225 + 18769 = 1035^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9339 + ... + 9454.

2^1089994 is an apocalyptic number.

1089994 is a deficient number, since it is larger than the sum of its proper divisors (601466).

1089994 is a wasteful number, since it uses less digits than its factorization.

1089994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18824.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1089994 is about 1044.0277774082. The cubic root of 1089994 is about 102.9140578233.

The spelling of 1089994 in words is "one million, eighty-nine thousand, nine hundred ninety-four".