4383797981 has 2 divisors, whose sum is σ = 4383797982. Its totient is φ = 4383797980.

The previous prime is 4383797917. The next prime is 4383797983. The reversal of 4383797981 is 1897973834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4373176900 + 10621081 = 66130^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 4383797981 - 2⁶ = 4383797917 is a prime.

It is a super-2 number, since 2×4383797981² = 38435369476439352722, which contains 22 as substring.

Together with 4383797983, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4383797981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4383797983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2191898990 + 2191898991.

It is an arithmetic number, because the mean of its divisors is an integer number (2191898991).

Almost surely, 2^4383797981 is an apocalyptic number.

It is an amenable number.

4383797981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4383797981 is an equidigital number, since it uses as much as digits as its factorization.

4383797981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 59.

The square root of 4383797981 is about 66210.2558596476. The cubic root of 4383797981 is about 1636.6287554642.

The spelling of 4383797981 in words is "four billion, three hundred eighty-three million, seven hundred ninety-seven thousand, nine hundred eighty-one".