1099906 has 8 divisors (see below), whose sum is σ = 1721664. Its totient is φ = 526020.

The previous prime is 1099867. The next prime is 1099927. The reversal of 1099906 is 6099901.

It is a happy number.

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, 11910 + ... + 12001.

It is an arithmetic number, because the mean of its divisors is an integer number (215208).

2^1099906 is an apocalyptic number.

1099906 is a deficient number, since it is larger than the sum of its proper divisors (621758).

1099906 is a wasteful number, since it uses less digits than its factorization.

1099906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23936.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1099906 is about 1048.7640344711. The cubic root of 1099906 is about 103.2250710276.

The spelling of 1099906 in words is "one million, ninety-nine thousand, nine hundred six".