2878859 has 8 divisors (see below), whose sum is σ = 3059760. Its totient is φ = 2703456.

The previous prime is 2878853. The next prime is 2878867. The reversal of 2878859 is 9588782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2878859 - 2¹⁶ = 2813323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (382470).

2^2878859 is an apocalyptic number.

2878859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2878859 is a deficient number, since it is larger than the sum of its proper divisors (180901).

2878859 is a wasteful number, since it uses less digits than its factorization.

2878859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749.

The product of its digits is 322560, while the sum is 47.

The square root of 2878859 is about 1696.7200711962. The cubic root of 2878859 is about 142.2569407382.

It can be divided in two parts, 28 and 78859, that added together give a palindrome (78887).

The spelling of 2878859 in words is "two million, eight hundred seventy-eight thousand, eight hundred fifty-nine".