609888 has 24 divisors (see below), whose sum is σ = 1601208. Its totient is φ = 203264.

The previous prime is 609887. The next prime is 609907. The reversal of 609888 is 888906.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609888.

It is not an unprimeable number, because it can be changed into a prime (609887) 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, 3081 + ... + 3272.

It is an arithmetic number, because the mean of its divisors is an integer number (66717).

2⁶⁰⁹⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

609888 is an abundant number, since it is smaller than the sum of its proper divisors (991320).

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

609888 is a wasteful number, since it uses less digits than its factorization.

609888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 609888 is about 780.9532636464. The cubic root of 609888 is about 84.8040700550.

The spelling of 609888 in words is "six hundred nine thousand, eight hundred eighty-eight".