87521068 has 12 divisors (see below), whose sum is σ = 161223160. Its totient is φ = 41457312.

The previous prime is 87521053. The next prime is 87521069. The reversal of 87521068 is 86012578.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87521069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575721 + ... + 575872.

Almost surely, 2^87521068 is an apocalyptic number.

It is an amenable number.

87521068 is a deficient number, since it is larger than the sum of its proper divisors (73702092).

87521068 is a wasteful number, since it uses less digits than its factorization.

87521068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151616 (or 1151614 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 87521068 is about 9355.2695311252. The cubic root of 87521068 is about 443.9876291767.

The spelling of 87521068 in words is "eighty-seven million, five hundred twenty-one thousand, sixty-eight".