19983371 has 2 divisors, whose sum is σ = 19983372. Its totient is φ = 19983370.

The previous prime is 19983361. The next prime is 19983373. The reversal of 19983371 is 17338991.

It is a strong prime.

It is an emirp because it is prime and its reverse (17338991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19983371 - 2¹⁸ = 19721227 is a prime.

It is a Sophie Germain prime.

Together with 19983373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19983373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9991685 + 9991686.

It is an arithmetic number, because the mean of its divisors is an integer number (9991686).

Almost surely, 2^19983371 is an apocalyptic number.

19983371 is a deficient number, since it is larger than the sum of its proper divisors (1).

19983371 is an equidigital number, since it uses as much as digits as its factorization.

19983371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 19983371 is about 4470.2763896654. The cubic root of 19983371 is about 271.3665107156.

The spelling of 19983371 in words is "nineteen million, nine hundred eighty-three thousand, three hundred seventy-one".