200449987 has 2 divisors, whose sum is σ = 200449988. Its totient is φ = 200449986.

The previous prime is 200449967. The next prime is 200450021. The reversal of 200449987 is 789944002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200449987 - 2⁷ = 200449859 is a prime.

It is not a weakly prime, because it can be changed into another prime (200449967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100224993 + 100224994.

It is an arithmetic number, because the mean of its divisors is an integer number (100224994).

Almost surely, 2^200449987 is an apocalyptic number.

200449987 is a deficient number, since it is larger than the sum of its proper divisors (1).

200449987 is an equidigital number, since it uses as much as digits as its factorization.

200449987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 200449987 is about 14158.0361279381. The cubic root of 200449987 is about 585.2418091101.

The spelling of 200449987 in words is "two hundred million, four hundred forty-nine thousand, nine hundred eighty-seven".