200401889 has 2 divisors, whose sum is σ = 200401890. Its totient is φ = 200401888.

The previous prime is 200401867. The next prime is 200401939. The reversal of 200401889 is 988104002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125059489 + 75342400 = 11183^2 + 8680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200401889 is a prime.

It is a super-2 number, since 2×200401889² = 80321834229536642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200401589) 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 as a sum of consecutive naturals, namely, 100200944 + 100200945.

It is an arithmetic number, because the mean of its divisors is an integer number (100200945).

Almost surely, 2^200401889 is an apocalyptic number.

It is an amenable number.

200401889 is a deficient number, since it is larger than the sum of its proper divisors (1).

200401889 is an equidigital number, since it uses as much as digits as its factorization.

200401889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 200401889 is about 14156.3374147411. The cubic root of 200401889 is about 585.1949957500.

The spelling of 200401889 in words is "two hundred million, four hundred one thousand, eight hundred eighty-nine".