19992383 has 2 divisors, whose sum is σ = 19992384. Its totient is φ = 19992382.

The previous prime is 19992367. The next prime is 19992407. The reversal of 19992383 is 38329991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19992383 - 2⁴ = 19992367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19992283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9996191 + 9996192.

It is an arithmetic number, because the mean of its divisors is an integer number (9996192).

Almost surely, 2^19992383 is an apocalyptic number.

19992383 is a deficient number, since it is larger than the sum of its proper divisors (1).

19992383 is an equidigital number, since it uses as much as digits as its factorization.

19992383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 44.

The square root of 19992383 is about 4471.2842674113. The cubic root of 19992383 is about 271.4072977523.

The spelling of 19992383 in words is "nineteen million, nine hundred ninety-two thousand, three hundred eighty-three".