652809 has 8 divisors (see below), whose sum is σ = 908352. Its totient is φ = 416240.

The previous prime is 652787. The next prime is 652811. The reversal of 652809 is 908256.

652809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 652809 - 2¹¹ = 650761 is a prime.

It is a super-3 number, since 3×652809³ = 834602448306933387, which contains 333 as substring.

652809 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 652809.

It is not an unprimeable number, because it can be changed into a prime (652849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4662 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (113544).

2⁶⁵²⁸⁰⁹ is an apocalyptic number.

652809 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

652809 is a deficient number, since it is larger than the sum of its proper divisors (255543).

652809 is a wasteful number, since it uses less digits than its factorization.

652809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 652809 is about 807.9659646297. The cubic root of 652809 is about 86.7485140668.

The spelling of 652809 in words is "six hundred fifty-two thousand, eight hundred nine".