609688 has 16 divisors (see below), whose sum is σ = 1210680. Its totient is φ = 286848.

The previous prime is 609683. The next prime is 609701. The reversal of 609688 is 886906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609683) 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, 2106 + ... + 2377.

2⁶⁰⁹⁶⁸⁸ is an apocalyptic number.

609688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

609688 is a deficient number, since it is larger than the sum of its proper divisors (600992).

609688 is a wasteful number, since it uses less digits than its factorization.

609688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 609688 is about 780.8252045112. The cubic root of 609688 is about 84.7947991352.

The spelling of 609688 in words is "six hundred nine thousand, six hundred eighty-eight".