811366 has 4 divisors (see below), whose sum is σ = 1217052. Its totient is φ = 405682.

The previous prime is 811351. The next prime is 811379. The reversal of 811366 is 663118.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 811366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202840 + ... + 202843.

It is an arithmetic number, because the mean of its divisors is an integer number (304263).

2⁸¹¹³⁶⁶ is an apocalyptic number.

811366 is a deficient number, since it is larger than the sum of its proper divisors (405686).

811366 is a wasteful number, since it uses less digits than its factorization.

811366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405685.

The product of its digits is 864, while the sum is 25.

The square root of 811366 is about 900.7585692071. The cubic root of 811366 is about 93.2693467323.

The spelling of 811366 in words is "eight hundred eleven thousand, three hundred sixty-six".