87647168 has 56 divisors (see below), whose sum is σ = 205215744. Its totient is φ = 36345600.

The previous prime is 87647159. The next prime is 87647173. The reversal of 87647168 is 86174678.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10733 + ... + 17043.

Almost surely, 2^87647168 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 87647168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102607872).

87647168 is an abundant number, since it is smaller than the sum of its proper divisors (117568576).

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

87647168 is a wasteful number, since it uses less digits than its factorization.

87647168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361 (or 6351 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 87647168 is about 9362.0066225142. The cubic root of 87647168 is about 444.2007587096.

The spelling of 87647168 in words is "eighty-seven million, six hundred forty-seven thousand, one hundred sixty-eight".