4399889959 has 4 divisors (see below), whose sum is σ = 4401162504. Its totient is φ = 4398617416.

The previous prime is 4399889957. The next prime is 4399889971. The reversal of 4399889959 is 9599889934.

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

It is a cyclic number.

It is not a de Polignac number, because 4399889959 - 2¹ = 4399889957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4399889891 and 4399889900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399889953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631072 + ... + 638005.

It is an arithmetic number, because the mean of its divisors is an integer number (1100290626).

Almost surely, 2^4399889959 is an apocalyptic number.

4399889959 is a deficient number, since it is larger than the sum of its proper divisors (1272545).

4399889959 is a wasteful number, since it uses less digits than its factorization.

4399889959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272544.

The product of its digits is 226748160, while the sum is 73.

The square root of 4399889959 is about 66331.6663366751. Note that the first 3 decimals coincide. The cubic root of 4399889959 is about 1638.6288806432.

The spelling of 4399889959 in words is "four billion, three hundred ninety-nine million, eight hundred eighty-nine thousand, nine hundred fifty-nine".