811960 has 32 divisors (see below), whose sum is σ = 1866240. Its totient is φ = 317824.

The previous prime is 811957. The next prime is 811961. The reversal of 811960 is 69118.

811960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (58320).

2⁸¹¹⁹⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933120).

811960 is an abundant number, since it is smaller than the sum of its proper divisors (1054280).

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

811960 is a wasteful number, since it uses less digits than its factorization.

811960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 811960 is about 901.0882309741. The cubic root of 811960 is about 93.2921019695.

It can be divided in two parts, 811 and 960, that added together give a palindrome (1771).

The spelling of 811960 in words is "eight hundred eleven thousand, nine hundred sixty".