87389568 has 96 divisors (see below), whose sum is σ = 287423760. Its totient is φ = 24966144.

The previous prime is 87389539. The next prime is 87389593. The reversal of 87389568 is 86598378.

It is a happy number.

87389568 is a `hidden beast` number, since 8 + 73 + 8 + 9 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2646 + ... + 13482.

Almost surely, 2^87389568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87389568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143711880).

87389568 is an abundant number, since it is smaller than the sum of its proper divisors (200034192).

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

87389568 is a wasteful number, since it uses less digits than its factorization.

87389568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10864 (or 10849 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 87389568 is about 9348.2387646016. The cubic root of 87389568 is about 443.7651545972.

The spelling of 87389568 in words is "eighty-seven million, three hundred eighty-nine thousand, five hundred sixty-eight".