87528066 has 32 divisors (see below), whose sum is σ = 181874688. Its totient is φ = 28051920.

The previous prime is 87528037. The next prime is 87528083. The reversal of 87528066 is 66082578.

It is a super-2 number, since 2×87528066² = 15322324675400712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28875 + ... + 31761.

It is an arithmetic number, because the mean of its divisors is an integer number (5683584).

Almost surely, 2^87528066 is an apocalyptic number.

87528066 is an abundant number, since it is smaller than the sum of its proper divisors (94346622).

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

87528066 is a wasteful number, since it uses less digits than its factorization.

87528066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 87528066 is about 9355.6435374591. The cubic root of 87528066 is about 443.9994622995. Note that the first 3 decimals are identical.

The spelling of 87528066 in words is "eighty-seven million, five hundred twenty-eight thousand, sixty-six".