811962 has 24 divisors (see below), whose sum is σ = 1784640. Its totient is φ = 266760.

The previous prime is 811961. The next prime is 811981. The reversal of 811962 is 269118.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 811962.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1137 + ... + 1707.

It is an arithmetic number, because the mean of its divisors is an integer number (74360).

2⁸¹¹⁹⁶² is an apocalyptic number.

811962 is an abundant number, since it is smaller than the sum of its proper divisors (972678).

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

811962 is a wasteful number, since it uses less digits than its factorization.

811962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 655 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 811962 is about 901.0893407426. The cubic root of 811962 is about 93.2921785677.

The spelling of 811962 in words is "eight hundred eleven thousand, nine hundred sixty-two".