87061568 has 28 divisors (see below), whose sum is σ = 188470032. Its totient is φ = 39573120.

The previous prime is 87061529. The next prime is 87061613. The reversal of 87061568 is 86516078.

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, 61130 + ... + 62537.

Almost surely, 2^87061568 is an apocalyptic number.

87061568 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

87061568 is an abundant number, since it is smaller than the sum of its proper divisors (101408464).

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

87061568 is a wasteful number, since it uses less digits than its factorization.

87061568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123690 (or 123680 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 87061568 is about 9330.6788606189. The cubic root of 87061568 is about 443.2092627101.

Subtracting from 87061568 its reverse (86516078), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 87061568 in words is "eighty-seven million, sixty-one thousand, five hundred sixty-eight".