200639903 has 2 divisors, whose sum is σ = 200639904. Its totient is φ = 200639902.

The previous prime is 200639861. The next prime is 200639917. The reversal of 200639903 is 309936002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200639903 - 2²⁴ = 183862687 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200639903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200639003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100319951 + 100319952.

It is an arithmetic number, because the mean of its divisors is an integer number (100319952).

Almost surely, 2^200639903 is an apocalyptic number.

200639903 is a deficient number, since it is larger than the sum of its proper divisors (1).

200639903 is an equidigital number, since it uses as much as digits as its factorization.

200639903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 200639903 is about 14164.7415437063. The cubic root of 200639903 is about 585.4265795552.

The spelling of 200639903 in words is "two hundred million, six hundred thirty-nine thousand, nine hundred three".