3923993 has 2 divisors, whose sum is σ = 3923994. Its totient is φ = 3923992.

The previous prime is 3923981. The next prime is 3924017. The reversal of 3923993 is 3993293.

3923993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2550409 + 1373584 = 1597^2 + 1172^2 .

It is a cyclic number.

It is not a de Polignac number, because 3923993 - 2⁴ = 3923977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3923963) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961996 + 1961997.

It is an arithmetic number, because the mean of its divisors is an integer number (1961997).

Almost surely, 2^3923993 is an apocalyptic number.

It is an amenable number.

3923993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3923993 is an equidigital number, since it uses as much as digits as its factorization.

3923993 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 3923993 is about 1980.9071154398. The cubic root of 3923993 is about 157.7282220918.

The spelling of 3923993 in words is "three million, nine hundred twenty-three thousand, nine hundred ninety-three".