609733648 has 10 divisors (see below), whose sum is σ = 1181358974. Its totient is φ = 304866816.

The previous prime is 609733643. The next prime is 609733661. The reversal of 609733648 is 846337906.

It can be written as a sum of positive squares in only one way, i.e., 592825104 + 16908544 = 24348^2 + 4112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 609733598 and 609733607.

It is not an unprimeable number, because it can be changed into a prime (609733643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19054161 + ... + 19054192.

Almost surely, 2^609733648 is an apocalyptic number.

It is an amenable number.

609733648 is a deficient number, since it is larger than the sum of its proper divisors (571625326).

609733648 is a wasteful number, since it uses less digits than its factorization.

609733648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38108361 (or 38108355 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 609733648 is about 24692.7853430916. The cubic root of 609733648 is about 847.9691530846.

The spelling of 609733648 in words is "six hundred nine million, seven hundred thirty-three thousand, six hundred forty-eight".