204213983 has 2 divisors, whose sum is σ = 204213984. Its totient is φ = 204213982.

The previous prime is 204213959. The next prime is 204214039. The reversal of 204213983 is 389312402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204213983 - 2²² = 200019679 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 (204213683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102106991 + 102106992.

It is an arithmetic number, because the mean of its divisors is an integer number (102106992).

Almost surely, 2^204213983 is an apocalyptic number.

204213983 is a deficient number, since it is larger than the sum of its proper divisors (1).

204213983 is an equidigital number, since it uses as much as digits as its factorization.

204213983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 204213983 is about 14290.3457970757. The cubic root of 204213983 is about 588.8822878194.

The spelling of 204213983 in words is "two hundred four million, two hundred thirteen thousand, nine hundred eighty-three".