183664 has 20 divisors (see below), whose sum is σ = 383656. Its totient is φ = 84672.

The previous prime is 183661. The next prime is 183683. The reversal of 183664 is 466381.

183664 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183661) 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, 234 + ... + 649.

2¹⁸³⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

183664 is an abundant number, since it is smaller than the sum of its proper divisors (199992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

183664 is a wasteful number, since it uses less digits than its factorization.

183664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 898 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 183664 is about 428.5603808100. The cubic root of 183664 is about 56.8426975127.

The spelling of 183664 in words is "one hundred eighty-three thousand, six hundred sixty-four".