4399085 has 4 divisors (see below), whose sum is σ = 5278908. Its totient is φ = 3519264.

The previous prime is 4399079. The next prime is 4399103. The reversal of 4399085 is 5809934.

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 3279721 + 1119364 = 1811^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 4399085 - 2⁸ = 4398829 is a prime.

It is a Duffinian number.

It is a Curzon 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, 439904 + ... + 439913.

It is an arithmetic number, because the mean of its divisors is an integer number (1319727).

Almost surely, 2^4399085 is an apocalyptic number.

It is an amenable number.

4399085 is a deficient number, since it is larger than the sum of its proper divisors (879823).

4399085 is an equidigital number, since it uses as much as digits as its factorization.

4399085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879822.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 4399085 is about 2097.3995804329. The cubic root of 4399085 is about 163.8528945605.

The spelling of 4399085 in words is "four million, three hundred ninety-nine thousand, eighty-five".