4378085 has 4 divisors (see below), whose sum is σ = 5253708. Its totient is φ = 3502464.

The previous prime is 4378079. The next prime is 4378093. The reversal of 4378085 is 5808734.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2024929 + 2353156 = 1423^2 + 1534^2 .

It is a cyclic number.

It is not a de Polignac number, because 4378085 - 2⁴ = 4378069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437804 + ... + 437813.

It is an arithmetic number, because the mean of its divisors is an integer number (1313427).

Almost surely, 2^4378085 is an apocalyptic number.

It is an amenable number.

4378085 is a deficient number, since it is larger than the sum of its proper divisors (875623).

4378085 is an equidigital number, since it uses as much as digits as its factorization.

4378085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875622.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 4378085 is about 2092.3873924300. The cubic root of 4378085 is about 163.5917492945.

The spelling of 4378085 in words is "four million, three hundred seventy-eight thousand, eighty-five".