889642860 has 48 divisors (see below), whose sum is σ = 2576901600. Its totient is φ = 229057024.

The previous prime is 889642847. The next prime is 889642883. The reversal of 889642860 is 68246988.

It is a happy number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 253905 + ... + 257384.

It is an arithmetic number, because the mean of its divisors is an integer number (53685450).

Almost surely, 2^889642860 is an apocalyptic number.

It is an amenable number.

889642860 is an abundant number, since it is smaller than the sum of its proper divisors (1687258740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889642860 is a wasteful number, since it uses less digits than its factorization.

889642860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511330 (or 511328 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 889642860 is about 29826.8814997478. The cubic root of 889642860 is about 961.7714903386.

The spelling of 889642860 in words is "eight hundred eighty-nine million, six hundred forty-two thousand, eight hundred sixty".