4399911973 has 2 divisors, whose sum is σ = 4399911974. Its totient is φ = 4399911972.

The previous prime is 4399911959. The next prime is 4399912009. The reversal of 4399911973 is 3791199934.

It is a happy number.

4399911973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2864604484 + 1535307489 = 53522^2 + 39183^2 .

It is a cyclic number.

It is not a de Polignac number, because 4399911973 - 2¹⁷ = 4399780901 is a prime.

It is a super-4 number, since 4×4399911973⁴ (a number of 40 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4399911913) 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 as a sum of consecutive naturals, namely, 2199955986 + 2199955987.

It is an arithmetic number, because the mean of its divisors is an integer number (2199955987).

Almost surely, 2^4399911973 is an apocalyptic number.

It is an amenable number.

4399911973 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399911973 is an equidigital number, since it uses as much as digits as its factorization.

4399911973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 55.

The square root of 4399911973 is about 66331.8322753111. The cubic root of 4399911973 is about 1638.6316134930.

The spelling of 4399911973 in words is "four billion, three hundred ninety-nine million, nine hundred eleven thousand, nine hundred seventy-three".