888004989 has 6 divisors (see below), whose sum is σ = 1282673886. Its totient is φ = 592003320.

The previous prime is 888004987. The next prime is 888005003. The reversal of 888004989 is 989400888.

It can be written as a sum of positive squares in only one way, i.e., 814645764 + 73359225 = 28542^2 + 8565^2 .

It is not a de Polignac number, because 888004989 - 2¹ = 888004987 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888004987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49333602 + ... + 49333619.

It is an arithmetic number, because the mean of its divisors is an integer number (213778981).

Almost surely, 2^888004989 is an apocalyptic number.

It is an amenable number.

888004989 is a deficient number, since it is larger than the sum of its proper divisors (394668897).

888004989 is a wasteful number, since it uses less digits than its factorization.

888004989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98667227 (or 98667224 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 888004989 is about 29799.4125613241. The cubic root of 888004989 is about 961.1809067837.

The spelling of 888004989 in words is "eight hundred eighty-eight million, four thousand, nine hundred eighty-nine".