4399889971 has 2 divisors, whose sum is σ = 4399889972. Its totient is φ = 4399889970.

The previous prime is 4399889957. The next prime is 4399890043. The reversal of 4399889971 is 1799889934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4399889971 - 2⁵ = 4399889939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4399889897 and 4399889906.

It is not a weakly prime, because it can be changed into another prime (4399889941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199944985 + 2199944986.

It is an arithmetic number, because the mean of its divisors is an integer number (2199944986).

Almost surely, 2^4399889971 is an apocalyptic number.

4399889971 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399889971 is an equidigital number, since it uses as much as digits as its factorization.

4399889971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 67.

The square root of 4399889971 is about 66331.6664271297. Note that the first 3 decimals coincide. The cubic root of 4399889971 is about 1638.6288821329.

The spelling of 4399889971 in words is "four billion, three hundred ninety-nine million, eight hundred eighty-nine thousand, nine hundred seventy-one".