4065878 has 4 divisors (see below), whose sum is σ = 6098820. Its totient is φ = 2032938.

The previous prime is 4065877. The next prime is 4065913. The reversal of 4065878 is 8785604.

4065878 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 an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065877) by changing a digit.

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, 1016468 + ... + 1016471.

It is an arithmetic number, because the mean of its divisors is an integer number (1524705).

Almost surely, 2^4065878 is an apocalyptic number.

4065878 is a deficient number, since it is larger than the sum of its proper divisors (2032942).

4065878 is a wasteful number, since it uses less digits than its factorization.

4065878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032941.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 4065878 is about 2016.4022416175. The cubic root of 4065878 is about 159.6068210643.

The spelling of 4065878 in words is "four million, sixty-five thousand, eight hundred seventy-eight".