1816606 has 16 divisors (see below), whose sum is σ = 3017088. Its totient is φ = 813400.

The previous prime is 1816583. The next prime is 1816613. The reversal of 1816606 is 6066181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (188568).

2^1816606 is an apocalyptic number.

1816606 is a deficient number, since it is larger than the sum of its proper divisors (1200482).

1816606 is a wasteful number, since it uses less digits than its factorization.

1816606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1816606 is about 1347.8152692413. The cubic root of 1816606 is about 122.0169733618.

The spelling of 1816606 in words is "one million, eight hundred sixteen thousand, six hundred six".