87168606 has 64 divisors (see below), whose sum is σ = 209779200. Its totient is φ = 23619456.

The previous prime is 87168593. The next prime is 87168607. The reversal of 87168606 is 60686178.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87168607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71256 + ... + 72468.

It is an arithmetic number, because the mean of its divisors is an integer number (3277800).

Almost surely, 2^87168606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87168606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104889600).

87168606 is an abundant number, since it is smaller than the sum of its proper divisors (122610594).

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

87168606 is a wasteful number, since it uses less digits than its factorization.

87168606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 87168606 is about 9336.4129086068. The cubic root of 87168606 is about 443.3908231299.

The spelling of 87168606 in words is "eighty-seven million, one hundred sixty-eight thousand, six hundred six".