2878365 has 32 divisors (see below), whose sum is σ = 5345280. Its totient is φ = 1295424.

The previous prime is 2878361. The next prime is 2878373. The reversal of 2878365 is 5638782.

It is not a de Polignac number, because 2878365 - 2² = 2878361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8122 + ... + 8468.

It is an arithmetic number, because the mean of its divisors is an integer number (167040).

2^2878365 is an apocalyptic number.

It is an amenable number.

2878365 is a deficient number, since it is larger than the sum of its proper divisors (2466915).

2878365 is a wasteful number, since it uses less digits than its factorization.

2878365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its digits is 80640, while the sum is 39.

The square root of 2878365 is about 1696.5744899650. The cubic root of 2878365 is about 142.2488033768.

The spelling of 2878365 in words is "two million, eight hundred seventy-eight thousand, three hundred sixty-five".