3992393 has 2 divisors, whose sum is σ = 3992394. Its totient is φ = 3992392.

The previous prime is 3992381. The next prime is 3992407. The reversal of 3992393 is 3932993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 1721344 = 1507^2 + 1312^2 .

It is an emirp because it is prime and its reverse (3932993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3992393 - 2⁴ = 3992377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3992323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996196 + 1996197.

It is an arithmetic number, because the mean of its divisors is an integer number (1996197).

Almost surely, 2^3992393 is an apocalyptic number.

It is an amenable number.

3992393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3992393 is an equidigital number, since it uses as much as digits as its factorization.

3992393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39366, while the sum is 38.

The square root of 3992393 is about 1998.0973449760. The cubic root of 3992393 is about 158.6394133412.

The spelling of 3992393 in words is "three million, nine hundred ninety-two thousand, three hundred ninety-three".