2587166 has 4 divisors (see below), whose sum is σ = 3880752. Its totient is φ = 1293582.

The previous prime is 2587163. The next prime is 2587183. The reversal of 2587166 is 6617852.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587163) 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 as a sum of consecutive naturals, namely, 646790 + ... + 646793.

It is an arithmetic number, because the mean of its divisors is an integer number (970188).

2^2587166 is an apocalyptic number.

2587166 is a deficient number, since it is larger than the sum of its proper divisors (1293586).

2587166 is a wasteful number, since it uses less digits than its factorization.

2587166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293585.

The product of its digits is 20160, while the sum is 35.

The square root of 2587166 is about 1608.4669719954. The cubic root of 2587166 is about 137.2802616962.

The spelling of 2587166 in words is "two million, five hundred eighty-seven thousand, one hundred sixty-six".