609924 has 48 divisors (see below), whose sum is σ = 1669248. Its totient is φ = 169728.

The previous prime is 609923. The next prime is 609929. The reversal of 609924 is 429906.

It is a junction number, because it is equal to n+sod(n) for n = 609891 and 609900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4384 + ... + 4520.

It is an arithmetic number, because the mean of its divisors is an integer number (34776).

2⁶⁰⁹⁹²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834624).

609924 is an abundant number, since it is smaller than the sum of its proper divisors (1059324).

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

609924 is a wasteful number, since it uses less digits than its factorization.

609924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 609924 is about 780.9763120607. The cubic root of 609924 is about 84.8057386054.

The spelling of 609924 in words is "six hundred nine thousand, nine hundred twenty-four".