509802 has 8 divisors (see below), whose sum is σ = 1019616. Its totient is φ = 169932.

The previous prime is 509801. The next prime is 509833. The reversal of 509802 is 208905.

It is a sphenic number, since it is the product of 3 distinct primes.

509802 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (509801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42478 + ... + 42489.

It is an arithmetic number, because the mean of its divisors is an integer number (127452).

2⁵⁰⁹⁸⁰² is an apocalyptic number.

509802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

509802 is a wasteful number, since it uses less digits than its factorization.

509802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84972.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 509802 is about 714.0042016683. The cubic root of 509802 is about 79.8853566230.

The spelling of 509802 in words is "five hundred nine thousand, eight hundred two".