818366 has 8 divisors (see below), whose sum is σ = 1260840. Its totient is φ = 398088.

The previous prime is 818359. The next prime is 818371. The reversal of 818366 is 663818.

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

It is a congruent number.

It is an unprimeable number.

818366 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 5456 + ... + 5603.

It is an arithmetic number, because the mean of its divisors is an integer number (157605).

2⁸¹⁸³⁶⁶ is an apocalyptic number.

818366 is a deficient number, since it is larger than the sum of its proper divisors (442474).

818366 is a wasteful number, since it uses less digits than its factorization.

818366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11098.

The product of its digits is 6912, while the sum is 32.

The square root of 818366 is about 904.6358383350. The cubic root of 818366 is about 93.5368038360.

The spelling of 818366 in words is "eight hundred eighteen thousand, three hundred sixty-six".