1099804 has 6 divisors (see below), whose sum is σ = 1924664. Its totient is φ = 549900.

The previous prime is 1099799. The next prime is 1099807. The reversal of 1099804 is 4089901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099807) 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 as a sum of consecutive naturals, namely, 137472 + ... + 137479.

2^1099804 is an apocalyptic number.

It is an amenable number.

1099804 is a deficient number, since it is larger than the sum of its proper divisors (824860).

1099804 is a wasteful number, since it uses less digits than its factorization.

1099804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274955 (or 274953 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1099804 is about 1048.7154046737. The cubic root of 1099804 is about 103.2218800632.

The spelling of 1099804 in words is "one million, ninety-nine thousand, eight hundred four".