2687087 has 4 divisors (see below), whose sum is σ = 2893800. Its totient is φ = 2480376.

The previous prime is 2687081. The next prime is 2687093. The reversal of 2687087 is 7807862.

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

It is an interprime number because it is at equal distance from previous prime (2687081) and next prime (2687093).

It is a cyclic number.

It is not a de Polignac number, because 2687087 - 2⁶ = 2687023 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2687087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103337 + ... + 103362.

It is an arithmetic number, because the mean of its divisors is an integer number (723450).

2^2687087 is an apocalyptic number.

2687087 is a deficient number, since it is larger than the sum of its proper divisors (206713).

2687087 is a wasteful number, since it uses less digits than its factorization.

2687087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206712.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 2687087 is about 1639.2336624167. The cubic root of 2687087 is about 139.0253218882.

The spelling of 2687087 in words is "two million, six hundred eighty-seven thousand, eighty-seven".