609656 has 8 divisors (see below), whose sum is σ = 1143120. Its totient is φ = 304824.

The previous prime is 609641. The next prime is 609673. The reversal of 609656 is 656906.

609656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38096 + ... + 38111.

It is an arithmetic number, because the mean of its divisors is an integer number (142890).

2⁶⁰⁹⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

609656 is a deficient number, since it is larger than the sum of its proper divisors (533464).

609656 is a wasteful number, since it uses less digits than its factorization.

609656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76213 (or 76209 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 609656 is about 780.8047131005. The cubic root of 609656 is about 84.7933155998.

The spelling of 609656 in words is "six hundred nine thousand, six hundred fifty-six".