609956 has 12 divisors (see below), whose sum is σ = 1102080. Its totient is φ = 295080.

The previous prime is 609929. The next prime is 609979. The reversal of 609956 is 659906.

It is a congruent number.

It is an unprimeable number.

609956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336 + ... + 2583.

It is an arithmetic number, because the mean of its divisors is an integer number (91840).

2⁶⁰⁹⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

609956 is a deficient number, since it is larger than the sum of its proper divisors (492124).

609956 is a wasteful number, since it uses less digits than its factorization.

609956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954 (or 4952 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 609956 is about 780.9967989691. The cubic root of 609956 is about 84.8072217061.

The spelling of 609956 in words is "six hundred nine thousand, nine hundred fifty-six".