2978875 has 8 divisors (see below), whose sum is σ = 3717792. Its totient is φ = 2383000.

The previous prime is 2978869. The next prime is 2978917. The reversal of 2978875 is 5788792.

It is not a de Polignac number, because 2978875 - 2¹⁵ = 2946107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11791 + ... + 12040.

It is an arithmetic number, because the mean of its divisors is an integer number (464724).

2^2978875 is an apocalyptic number.

2978875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2978875 is a deficient number, since it is larger than the sum of its proper divisors (738917).

2978875 is an equidigital number, since it uses as much as digits as its factorization.

2978875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23846 (or 23836 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 2978875 is about 1725.9417719031. The cubic root of 2978875 is about 143.8856312829.

The spelling of 2978875 in words is "two million, nine hundred seventy-eight thousand, eight hundred seventy-five".