2878829 has 6 divisors (see below), whose sum is σ = 2919150. Its totient is φ = 2838936.

The previous prime is 2878819. The next prime is 2878847. The reversal of 2878829 is 9288782.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 946729 = 1390^2 + 973^2 .

It is not a de Polignac number, because 2878829 - 2⁸ = 2878573 is a prime.

It is a super-2 number, since 2×2878829² = 16575312822482, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (129024) is a multiple of the sum of its prime divisors (288).

It is a self number, because there is not a number n which added to its sum of digits gives 2878829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19247 + ... + 19395.

It is an arithmetic number, because the mean of its divisors is an integer number (486525).

2^2878829 is an apocalyptic number.

It is an amenable number.

2878829 is a deficient number, since it is larger than the sum of its proper divisors (40321).

2878829 is an equidigital number, since it uses as much as digits as its factorization.

2878829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 288 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 2878829 is about 1696.7112305870. The cubic root of 2878829 is about 142.2564465930.

The spelling of 2878829 in words is "two million, eight hundred seventy-eight thousand, eight hundred twenty-nine".