2878087 has 4 divisors (see below), whose sum is σ = 2907856. Its totient is φ = 2848320.

The previous prime is 2878067. The next prime is 2878093. The reversal of 2878087 is 7808782.

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

It is a cyclic number.

It is not a de Polignac number, because 2878087 - 2¹⁵ = 2845319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878027) 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 3 ways as a sum of consecutive naturals, for example, 14739 + ... + 14932.

It is an arithmetic number, because the mean of its divisors is an integer number (726964).

2^2878087 is an apocalyptic number.

2878087 is a deficient number, since it is larger than the sum of its proper divisors (29769).

2878087 is an equidigital number, since it uses as much as digits as its factorization.

2878087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29768.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 2878087 is about 1696.4925581918. The cubic root of 2878087 is about 142.2442236425.

The spelling of 2878087 in words is "two million, eight hundred seventy-eight thousand, eighty-seven".