213983663 has 8 divisors (see below), whose sum is σ = 221551200. Its totient is φ = 206428768.

The previous prime is 213983647. The next prime is 213983683. The reversal of 213983663 is 366389312.

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 213983663 - 2⁴ = 213983647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213983663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213983683) 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, 42845 + ... + 47577.

It is an arithmetic number, because the mean of its divisors is an integer number (27693900).

Almost surely, 2^213983663 is an apocalyptic number.

213983663 is a deficient number, since it is larger than the sum of its proper divisors (7567537).

213983663 is a wasteful number, since it uses less digits than its factorization.

213983663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321.

The product of its digits is 139968, while the sum is 41.

The square root of 213983663 is about 14628.1804405059. The cubic root of 213983663 is about 598.1271816308.

The spelling of 213983663 in words is "two hundred thirteen million, nine hundred eighty-three thousand, six hundred sixty-three".