4399990843 has 2 divisors, whose sum is σ = 4399990844. Its totient is φ = 4399990842.

The previous prime is 4399990841. The next prime is 4399990871. The reversal of 4399990843 is 3480999934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4399990843 - 2¹ = 4399990841 is a prime.

Together with 4399990841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4399990841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199995421 + 2199995422.

It is an arithmetic number, because the mean of its divisors is an integer number (2199995422).

Almost surely, 2^4399990843 is an apocalyptic number.

4399990843 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399990843 is an equidigital number, since it uses as much as digits as its factorization.

4399990843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7558272, while the sum is 58.

The square root of 4399990843 is about 66332.4267835875. The cubic root of 4399990843 is about 1638.6414044543.

The spelling of 4399990843 in words is "four billion, three hundred ninety-nine million, nine hundred ninety thousand, eight hundred forty-three".