2878065 has 16 divisors (see below), whose sum is σ = 5116800. Its totient is φ = 1534896.

The previous prime is 2878039. The next prime is 2878067. The reversal of 2878065 is 5608782.

It is not a de Polignac number, because 2878065 - 2⁷ = 2877937 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878067) 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 15 ways as a sum of consecutive naturals, for example, 10525 + ... + 10794.

It is an arithmetic number, because the mean of its divisors is an integer number (319800).

2^2878065 is an apocalyptic number.

It is an amenable number.

2878065 is a deficient number, since it is larger than the sum of its proper divisors (2238735).

2878065 is a wasteful number, since it uses less digits than its factorization.

2878065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21333 (or 21327 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2878065 is about 1696.4860742134. The cubic root of 2878065 is about 142.2438612049.

The spelling of 2878065 in words is "two million, eight hundred seventy-eight thousand, sixty-five".