609642 has 24 divisors (see below), whose sum is σ = 1441440. Its totient is φ = 184680.

The previous prime is 609641. The next prime is 609673. The reversal of 609642 is 246906.

609642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (609641) 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, 1342 + ... + 1737.

It is an arithmetic number, because the mean of its divisors is an integer number (60060).

2⁶⁰⁹⁶⁴² is an apocalyptic number.

609642 is an abundant number, since it is smaller than the sum of its proper divisors (831798).

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

609642 is a wasteful number, since it uses less digits than its factorization.

609642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3095 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 609642 is about 780.7957479392. The cubic root of 609642 is about 84.7926665368.

The spelling of 609642 in words is "six hundred nine thousand, six hundred forty-two".