383663 has 8 divisors (see below), whose sum is σ = 457728. Its totient is φ = 314424.

The previous prime is 383659. The next prime is 383681. The reversal of 383663 is 366383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 383663 - 2² = 383659 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (57216).

2³⁸³⁶⁶³ is an apocalyptic number.

383663 is a deficient number, since it is larger than the sum of its proper divisors (74065).

383663 is a wasteful number, since it uses less digits than its factorization.

383663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413.

The product of its digits is 7776, while the sum is 29.

The square root of 383663 is about 619.4053600026. The cubic root of 383663 is about 72.6635546554.

The spelling of 383663 in words is "three hundred eighty-three thousand, six hundred sixty-three".