609853 has 4 divisors (see below), whose sum is σ = 613440. Its totient is φ = 606268.

The previous prime is 609821. The next prime is 609859. The reversal of 609853 is 358906.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358906 = 2 ⋅179453.

It is a cyclic number.

It is not a de Polignac number, because 609853 - 2⁵ = 609821 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 6² + 0 + 8 + 9⁶ + 5⁷ + 3⁵ .

It is a Duffinian number.

609853 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609859) 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 3 ways as a sum of consecutive naturals, for example, 1525 + ... + 1882.

It is an arithmetic number, because the mean of its divisors is an integer number (153360).

2⁶⁰⁹⁸⁵³ is an apocalyptic number.

It is an amenable number.

609853 is a deficient number, since it is larger than the sum of its proper divisors (3587).

609853 is a wasteful number, since it uses less digits than its factorization.

609853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 609853 is about 780.9308548137. The cubic root of 609853 is about 84.8024477904.

The spelling of 609853 in words is "six hundred nine thousand, eight hundred fifty-three".