87168086 has 16 divisors (see below), whose sum is σ = 138121200. Its totient is φ = 41143968.

The previous prime is 87168077. The next prime is 87168089. The reversal of 87168086 is 68086178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87168089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7220 + ... + 15048.

It is an arithmetic number, because the mean of its divisors is an integer number (8632575).

Almost surely, 2^87168086 is an apocalyptic number.

87168086 is a deficient number, since it is larger than the sum of its proper divisors (50953114).

87168086 is a wasteful number, since it uses less digits than its factorization.

87168086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 87168086 is about 9336.3850606110. The cubic root of 87168086 is about 443.3899414528.

The spelling of 87168086 in words is "eighty-seven million, one hundred sixty-eight thousand, eighty-six".