609653656 has 16 divisors (see below), whose sum is σ = 1169685000. Its totient is φ = 297737664.

The previous prime is 609653593. The next prime is 609653659. The reversal of 609653656 is 656356906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609653659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885781 + ... + 886468.

Almost surely, 2^609653656 is an apocalyptic number.

It is an amenable number.

609653656 is a deficient number, since it is larger than the sum of its proper divisors (560031344).

609653656 is a wasteful number, since it uses less digits than its factorization.

609653656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772298 (or 1772294 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 46.

The square root of 609653656 is about 24691.1655455955. The cubic root of 609653656 is about 847.9320692885.

The spelling of 609653656 in words is "six hundred nine million, six hundred fifty-three thousand, six hundred fifty-six".