383664 has 20 divisors (see below), whose sum is σ = 991256. Its totient is φ = 127872.

The previous prime is 383659. The next prime is 383681. The reversal of 383664 is 466383.

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 383664.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3949 + ... + 4044.

2³⁸³⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

383664 is an abundant number, since it is smaller than the sum of its proper divisors (607592).

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

383664 is a wasteful number, since it uses less digits than its factorization.

383664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8004 (or 7998 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 383664 is about 619.4061672279. The cubic root of 383664 is about 72.6636177868.

The spelling of 383664 in words is "three hundred eighty-three thousand, six hundred sixty-four".