609652880 has 80 divisors (see below), whose sum is σ = 1441824384. Its totient is φ = 239708160.

The previous prime is 609652873. The next prime is 609652907. The reversal of 609652880 is 88256906.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1985687 + ... + 1985993.

Almost surely, 2^609652880 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 609652880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720912192).

609652880 is an abundant number, since it is smaller than the sum of its proper divisors (832171504).

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

609652880 is a wasteful number, since it uses less digits than its factorization.

609652880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 609652880 is about 24691.1498314680. The cubic root of 609652880 is about 847.9317095238.

The spelling of 609652880 in words is "six hundred nine million, six hundred fifty-two thousand, eight hundred eighty".