811266 has 8 divisors (see below), whose sum is σ = 1622544. Its totient is φ = 270420.

The previous prime is 811259. The next prime is 811273. The reversal of 811266 is 662118.

It is an interprime number because it is at equal distance from previous prime (811259) and next prime (811273).

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

811266 is an admirable number.

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, 67600 + ... + 67611.

It is an arithmetic number, because the mean of its divisors is an integer number (202818).

2⁸¹¹²⁶⁶ is an apocalyptic number.

811266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811266 is a wasteful number, since it uses less digits than its factorization.

811266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135216.

The product of its digits is 576, while the sum is 24.

The square root of 811266 is about 900.7030587269. The cubic root of 811266 is about 93.2655147921.

The spelling of 811266 in words is "eight hundred eleven thousand, two hundred sixty-six".