219983 has 2 divisors, whose sum is σ = 219984. Its totient is φ = 219982.

The previous prime is 219979. The next prime is 220009. The reversal of 219983 is 389912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 219983 - 2² = 219979 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109991 + 109992.

It is an arithmetic number, because the mean of its divisors is an integer number (109992).

2²¹⁹⁹⁸³ is an apocalyptic number.

219983 is a deficient number, since it is larger than the sum of its proper divisors (1).

219983 is an equidigital number, since it uses as much as digits as its factorization.

219983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 219983 is about 469.0234535714. The cubic root of 219983 is about 60.3665523918.

The spelling of 219983 in words is "two hundred nineteen thousand, nine hundred eighty-three".