889504987 has 8 divisors (see below), whose sum is σ = 1037324000. Its totient is φ = 762432552.

The previous prime is 889504961. The next prime is 889504999. The reversal of 889504987 is 789405988.

It is not a de Polignac number, because 889504987 - 2⁷ = 889504859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889504387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296312 + ... + 1296997.

It is an arithmetic number, because the mean of its divisors is an integer number (129665500).

Almost surely, 2^889504987 is an apocalyptic number.

889504987 is a deficient number, since it is larger than the sum of its proper divisors (147819013).

889504987 is an equidigital number, since it uses as much as digits as its factorization.

889504987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593330 (or 2593316 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 58.

The square root of 889504987 is about 29824.5701896943. The cubic root of 889504987 is about 961.7218040441.

The spelling of 889504987 in words is "eight hundred eighty-nine million, five hundred four thousand, nine hundred eighty-seven".