87168975 has 12 divisors (see below), whose sum is σ = 144119496. Its totient is φ = 46490080.

The previous prime is 87168971. The next prime is 87168989. The reversal of 87168975 is 57986178.

It is not a de Polignac number, because 87168975 - 2² = 87168971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87168971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 581052 + ... + 581201.

It is an arithmetic number, because the mean of its divisors is an integer number (12009958).

Almost surely, 2^87168975 is an apocalyptic number.

87168975 is a deficient number, since it is larger than the sum of its proper divisors (56950521).

87168975 is a wasteful number, since it uses less digits than its factorization.

87168975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162266 (or 1162261 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The square root of 87168975 is about 9336.4326699227. The cubic root of 87168975 is about 443.3914487793.

The spelling of 87168975 in words is "eighty-seven million, one hundred sixty-eight thousand, nine hundred seventy-five".