818606 has 16 divisors (see below), whose sum is σ = 1285200. Its totient is φ = 390720.

The previous prime is 818603. The next prime is 818621. The reversal of 818606 is 606818.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 818606.

It is not an unprimeable number, because it can be changed into a prime (818603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5420 + ... + 5568.

It is an arithmetic number, because the mean of its divisors is an integer number (80325).

2⁸¹⁸⁶⁰⁶ is an apocalyptic number.

818606 is a deficient number, since it is larger than the sum of its proper divisors (466594).

818606 is a wasteful number, since it uses less digits than its factorization.

818606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 818606 is about 904.7684786729. The cubic root of 818606 is about 93.5459467048.

The spelling of 818606 in words is "eight hundred eighteen thousand, six hundred six".