609979608 has 96 divisors (see below), whose sum is σ = 1905845760. Its totient is φ = 172635840.

The previous prime is 609979577. The next prime is 609979613. The reversal of 609979608 is 806979906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48273 + ... + 59583.

It is an arithmetic number, because the mean of its divisors is an integer number (19852560).

Almost surely, 2^609979608 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 609979608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952922880).

609979608 is an abundant number, since it is smaller than the sum of its proper divisors (1295866152).

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

609979608 is a wasteful number, since it uses less digits than its factorization.

609979608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11437 (or 11430 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 609979608 is about 24697.7652430336. The cubic root of 609979608 is about 848.0831583039.

The spelling of 609979608 in words is "six hundred nine million, nine hundred seventy-nine thousand, six hundred eight".