2878915 has 12 divisors (see below), whose sum is σ = 3741984. Its totient is φ = 2125344.

The previous prime is 2878903. The next prime is 2878919. The reversal of 2878915 is 5198782.

It is a de Polignac number, because none of the positive numbers 2^k-2878915 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 859 + ... + 2548.

It is an arithmetic number, because the mean of its divisors is an integer number (311832).

2^2878915 is an apocalyptic number.

2878915 is a deficient number, since it is larger than the sum of its proper divisors (863069).

2878915 is a wasteful number, since it uses less digits than its factorization.

2878915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438 (or 3425 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 2878915 is about 1696.7365735435. The cubic root of 2878915 is about 142.2578631334.

The spelling of 2878915 in words is "two million, eight hundred seventy-eight thousand, nine hundred fifteen".