2167287 has 8 divisors (see below), whose sum is σ = 2897136. Its totient is φ = 1441152.

The previous prime is 2167261. The next prime is 2167289. The reversal of 2167287 is 7827612.

2167287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2167287 - 2⁸ = 2167031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167289) 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, 1023 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (362142).

2^2167287 is an apocalyptic number.

2167287 is a deficient number, since it is larger than the sum of its proper divisors (729849).

2167287 is a wasteful number, since it uses less digits than its factorization.

2167287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857.

The product of its digits is 9408, while the sum is 33.

The square root of 2167287 is about 1472.1708460637. The cubic root of 2167287 is about 129.4112827360.

It can be divided in two parts, 216 and 7287, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 2167287 in words is "two million, one hundred sixty-seven thousand, two hundred eighty-seven".