609987768 has 64 divisors (see below), whose sum is σ = 1645207200. Its totient is φ = 187353600.

The previous prime is 609987751. The next prime is 609987773. The reversal of 609987768 is 867789906.

609987768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217318 + ... + 220106.

Almost surely, 2^609987768 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 609987768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822603600).

609987768 is an abundant number, since it is smaller than the sum of its proper divisors (1035219432).

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

609987768 is a wasteful number, since it uses less digits than its factorization.

609987768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 60.

The square root of 609987768 is about 24697.9304396138. The cubic root of 609987768 is about 848.0869400302.

The spelling of 609987768 in words is "six hundred nine million, nine hundred eighty-seven thousand, seven hundred sixty-eight".