809802 has 24 divisors (see below), whose sum is σ = 2005536. Its totient is φ = 231336.

The previous prime is 809801. The next prime is 809803. The reversal of 809802 is 208908.

809802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (809801) and next prime (809803).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (809801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3088 + ... + 3339.

It is an arithmetic number, because the mean of its divisors is an integer number (83564).

2⁸⁰⁹⁸⁰² is an apocalyptic number.

809802 is an abundant number, since it is smaller than the sum of its proper divisors (1195734).

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

809802 is a wasteful number, since it uses less digits than its factorization.

809802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442 (or 6439 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 809802 is about 899.8899932770. The cubic root of 809802 is about 93.2093791024.

The spelling of 809802 in words is "eight hundred nine thousand, eight hundred two".