811002 has 16 divisors (see below), whose sum is σ = 1717632. Its totient is φ = 254400.

The previous prime is 810989. The next prime is 811037. The reversal of 811002 is 200118.

It is a happy number.

It is an unprimeable number.

811002 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 7 ways as a sum of consecutive naturals, for example, 3874 + ... + 4077.

It is an arithmetic number, because the mean of its divisors is an integer number (107352).

2⁸¹¹⁰⁰² is an apocalyptic number.

811002 is an abundant number, since it is smaller than the sum of its proper divisors (906630).

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

811002 is a wasteful number, since it uses less digits than its factorization.

811002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7973.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 811002 is about 900.5564946187. The cubic root of 811002 is about 93.2553969568.

The spelling of 811002 in words is "eight hundred eleven thousand, two".