204007 has 2 divisors, whose sum is σ = 204008. Its totient is φ = 204006.

The previous prime is 203999. The next prime is 204013. The reversal of 204007 is 700402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204007 - 2³ = 203999 is a prime.

It is an Ulam number.

204007 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102003 + 102004.

It is an arithmetic number, because the mean of its divisors is an integer number (102004).

2²⁰⁴⁰⁰⁷ is an apocalyptic number.

204007 is a deficient number, since it is larger than the sum of its proper divisors (1).

204007 is an equidigital number, since it uses as much as digits as its factorization.

204007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 204007 is about 451.6713406892. The cubic root of 204007 is about 58.8683264840.

Adding to 204007 its reverse (700402), we get a palindrome (904409).

The spelling of 204007 in words is "two hundred four thousand, seven", and thus it is an iban number.