200691889 has 4 divisors (see below), whose sum is σ = 211254640. Its totient is φ = 190129140.

The previous prime is 200691871. The next prime is 200691901. The reversal of 200691889 is 988196002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200691889 - 2⁹ = 200691377 is a prime.

It is a super-3 number, since 3×200691889³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200691839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5281347 + ... + 5281384.

It is an arithmetic number, because the mean of its divisors is an integer number (52813660).

Almost surely, 2^200691889 is an apocalyptic number.

It is an amenable number.

200691889 is a deficient number, since it is larger than the sum of its proper divisors (10562751).

200691889 is a wasteful number, since it uses less digits than its factorization.

200691889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10562750.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 200691889 is about 14166.5764742227. The cubic root of 200691889 is about 585.4771367268.

The spelling of 200691889 in words is "two hundred million, six hundred ninety-one thousand, eight hundred eighty-nine".