4078885 has 16 divisors (see below), whose sum is σ = 5089392. Its totient is φ = 3136000.

The previous prime is 4078883. The next prime is 4078891. The reversal of 4078885 is 5888704.

It can be written as a sum of positive squares in 8 ways, for example, as 272484 + 3806401 = 522^2 + 1951^2 .

It is not a de Polignac number, because 4078885 - 2¹ = 4078883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20607 + ... + 20803.

It is an arithmetic number, because the mean of its divisors is an integer number (318087).

Almost surely, 2^4078885 is an apocalyptic number.

It is an amenable number.

4078885 is a deficient number, since it is larger than the sum of its proper divisors (1010507).

4078885 is a wasteful number, since it uses less digits than its factorization.

4078885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 4078885 is about 2019.6249651854. The cubic root of 4078885 is about 159.7768373223.

The spelling of 4078885 in words is "four million, seventy-eight thousand, eight hundred eighty-five".