200399 has 4 divisors (see below), whose sum is σ = 209136. Its totient is φ = 191664.

The previous prime is 200383. The next prime is 200401. The reversal of 200399 is 993002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200399 - 2⁴ = 200383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 8713 = 200399 / (2 + 0 + 0 + 3 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200329) 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 in 3 ways as a sum of consecutive naturals, for example, 4334 + ... + 4379.

It is an arithmetic number, because the mean of its divisors is an integer number (52284).

2²⁰⁰³⁹⁹ is an apocalyptic number.

200399 is a deficient number, since it is larger than the sum of its proper divisors (8737).

200399 is an equidigital number, since it uses as much as digits as its factorization.

200399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 200399 is about 447.6594687930. The cubic root of 200399 is about 58.5192183673.

It can be divided in two parts, 200 and 399, that multiplied together give a triangular number (79800 = T₃₉₉).

The spelling of 200399 in words is "two hundred thousand, three hundred ninety-nine".