200309989 has 16 divisors (see below), whose sum is σ = 237960000. Its totient is φ = 166561920.

The previous prime is 200309983. The next prime is 200309999. The reversal of 200309989 is 989903002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200309989 - 2¹¹ = 200307941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200309983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10464 + ... + 22585.

It is an arithmetic number, because the mean of its divisors is an integer number (14872500).

Almost surely, 2^200309989 is an apocalyptic number.

200309989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

200309989 is a deficient number, since it is larger than the sum of its proper divisors (37650011).

200309989 is a wasteful number, since it uses less digits than its factorization.

200309989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33108.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 200309989 is about 14153.0911464598. The cubic root of 200309989 is about 585.1055294561.

The spelling of 200309989 in words is "two hundred million, three hundred nine thousand, nine hundred eighty-nine".