3938471 has 2 divisors, whose sum is σ = 3938472. Its totient is φ = 3938470.

The previous prime is 3938449. The next prime is 3938477. The reversal of 3938471 is 1748393.

3938471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3938471 - 2¹⁸ = 3676327 is a prime.

It is a super-3 number, since 3×3938471³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3938477) 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, 1969235 + 1969236.

It is an arithmetic number, because the mean of its divisors is an integer number (1969236).

Almost surely, 2^3938471 is an apocalyptic number.

3938471 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938471 is an equidigital number, since it uses as much as digits as its factorization.

3938471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 3938471 is about 1984.5581372185. The cubic root of 3938471 is about 157.9219691606.

The spelling of 3938471 in words is "three million, nine hundred thirty-eight thousand, four hundred seventy-one".