811941 has 16 divisors (see below), whose sum is σ = 1182720. Its totient is φ = 492480.

The previous prime is 811933. The next prime is 811957. The reversal of 811941 is 149118.

811941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 811941 - 2³ = 811933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4156 + ... + 4346.

It is an arithmetic number, because the mean of its divisors is an integer number (73920).

2⁸¹¹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

811941 is a deficient number, since it is larger than the sum of its proper divisors (370779).

811941 is a wasteful number, since it uses less digits than its factorization.

811941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its digits is 288, while the sum is 24.

The square root of 811941 is about 901.0776881046. The cubic root of 811941 is about 93.2913742803.

The spelling of 811941 in words is "eight hundred eleven thousand, nine hundred forty-one".