213983 has 12 divisors (see below), whose sum is σ = 272232. Its totient is φ = 166320.

The previous prime is 213977. The next prime is 213989. The reversal of 213983 is 389312.

It is an interprime number because it is at equal distance from previous prime (213977) and next prime (213989).

It is not a de Polignac number, because 213983 - 2⁶ = 213919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341 + ... + 737.

It is an arithmetic number, because the mean of its divisors is an integer number (22686).

2²¹³⁹⁸³ is an apocalyptic number.

213983 is a deficient number, since it is larger than the sum of its proper divisors (58249).

213983 is a wasteful number, since it uses less digits than its factorization.

213983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 415 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 213983 is about 462.5829655316. The cubic root of 213983 is about 59.8126563891.

It can be divided in two parts, 2139 and 83, that added together give a palindrome (2222).

The spelling of 213983 in words is "two hundred thirteen thousand, nine hundred eighty-three".