202488889 has 2 divisors, whose sum is σ = 202488890. Its totient is φ = 202488888.

The previous prime is 202488857. The next prime is 202488907. The reversal of 202488889 is 988884202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106605625 + 95883264 = 10325^2 + 9792^2 .

It is a cyclic number.

It is not a de Polignac number, because 202488889 - 2⁵ = 202488857 is a prime.

It is not a weakly prime, because it can be changed into another prime (202488589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101244444 + 101244445.

It is an arithmetic number, because the mean of its divisors is an integer number (101244445).

Almost surely, 2^202488889 is an apocalyptic number.

It is an amenable number.

202488889 is a deficient number, since it is larger than the sum of its proper divisors (1).

202488889 is an equidigital number, since it uses as much as digits as its factorization.

202488889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 589824, while the sum is 49.

The square root of 202488889 is about 14229.8590646570. The cubic root of 202488889 is about 587.2194057087.

The spelling of 202488889 in words is "two hundred two million, four hundred eighty-eight thousand, eight hundred eighty-nine".