3938393 has 2 divisors, whose sum is σ = 3938394. Its totient is φ = 3938392.

The previous prime is 3938383. The next prime is 3938437.

It is a happy number.

3938393 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3356224 + 582169 = 1832^2 + 763^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 3938393 - 2⁶ = 3938329 is a prime.

It is not a weakly prime, because it can be changed into another prime (3938303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969196 + 1969197.

It is an arithmetic number, because the mean of its divisors is an integer number (1969197).

Almost surely, 2^3938393 is an apocalyptic number.

It is an amenable number.

3938393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938393 is an equidigital number, since it uses as much as digits as its factorization.

3938393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 3938393 is about 1984.5384853915. The cubic root of 3938393 is about 157.9209266245.

The spelling of 3938393 in words is "three million, nine hundred thirty-eight thousand, three hundred ninety-three".