811896 has 16 divisors (see below), whose sum is σ = 2029800. Its totient is φ = 270624.

The previous prime is 811879. The next prime is 811897. The reversal of 811896 is 698118.

811896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×811896² = 1318350229632, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811897) by changing a digit.

811896 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16891 + ... + 16938.

2⁸¹¹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

811896 is an abundant number, since it is smaller than the sum of its proper divisors (1217904).

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

811896 is a wasteful number, since it uses less digits than its factorization.

811896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33838 (or 33834 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 811896 is about 901.0527176586. The cubic root of 811896 is about 93.2896507604.

The spelling of 811896 in words is "eight hundred eleven thousand, eight hundred ninety-six".