2573878 has 4 divisors (see below), whose sum is σ = 3860820. Its totient is φ = 1286938.

The previous prime is 2573869. The next prime is 2573881. The reversal of 2573878 is 8783752.

2573878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2573878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643468 + ... + 643471.

It is an arithmetic number, because the mean of its divisors is an integer number (965205).

2^2573878 is an apocalyptic number.

2573878 is a deficient number, since it is larger than the sum of its proper divisors (1286942).

2573878 is a wasteful number, since it uses less digits than its factorization.

2573878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286941.

The product of its digits is 94080, while the sum is 40.

The square root of 2573878 is about 1604.3310132264. The cubic root of 2573878 is about 137.0448287772.

The spelling of 2573878 in words is "two million, five hundred seventy-three thousand, eight hundred seventy-eight".