87130068 has 12 divisors (see below), whose sum is σ = 203303520. Its totient is φ = 29043352.

The previous prime is 87130037. The next prime is 87130081. The reversal of 87130068 is 86003178.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3630408 + ... + 3630431.

It is an arithmetic number, because the mean of its divisors is an integer number (16941960).

Almost surely, 2^87130068 is an apocalyptic number.

It is an amenable number.

87130068 is an abundant number, since it is smaller than the sum of its proper divisors (116173452).

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

87130068 is a wasteful number, since it uses less digits than its factorization.

87130068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260846 (or 7260844 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 87130068 is about 9334.3488257082. The cubic root of 87130068 is about 443.3254711830.

The spelling of 87130068 in words is "eighty-seven million, one hundred thirty thousand, sixty-eight".