609648860 has 12 divisors (see below), whose sum is σ = 1280262648. Its totient is φ = 243859536.

The previous prime is 609648859. The next prime is 609648869. The reversal of 609648860 is 68846906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609648869) 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, 15241202 + ... + 15241241.

It is an arithmetic number, because the mean of its divisors is an integer number (106688554).

Almost surely, 2^609648860 is an apocalyptic number.

It is an amenable number.

609648860 is an abundant number, since it is smaller than the sum of its proper divisors (670613788).

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

609648860 is a wasteful number, since it uses less digits than its factorization.

609648860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30482452 (or 30482450 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 609648860 is about 24691.0684256474. The cubic root of 609648860 is about 847.9298457895.

The spelling of 609648860 in words is "six hundred nine million, six hundred forty-eight thousand, eight hundred sixty".