4399859 has 4 divisors (see below), whose sum is σ = 4427016. Its totient is φ = 4372704.

The previous prime is 4399853. The next prime is 4399873. The reversal of 4399859 is 9589934.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4399859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4399853) 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 in 3 ways as a sum of consecutive naturals, for example, 13334 + ... + 13659.

It is an arithmetic number, because the mean of its divisors is an integer number (1106754).

Almost surely, 2^4399859 is an apocalyptic number.

4399859 is a deficient number, since it is larger than the sum of its proper divisors (27157).

4399859 is a wasteful number, since it uses less digits than its factorization.

4399859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27156.

The product of its digits is 349920, while the sum is 47.

The square root of 4399859 is about 2097.5840865148. The cubic root of 4399859 is about 163.8625037333.

The spelling of 4399859 in words is "four million, three hundred ninety-nine thousand, eight hundred fifty-nine".