3973447 has 2 divisors, whose sum is σ = 3973448. Its totient is φ = 3973446.

The previous prime is 3973439. The next prime is 3973469. The reversal of 3973447 is 7443793.

3973447 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 is a cyclic number.

It is not a de Polignac number, because 3973447 - 2³ = 3973439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3973247) 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, 1986723 + 1986724.

It is an arithmetic number, because the mean of its divisors is an integer number (1986724).

Almost surely, 2^3973447 is an apocalyptic number.

3973447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3973447 is an equidigital number, since it uses as much as digits as its factorization.

3973447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 37.

The square root of 3973447 is about 1993.3506966914. The cubic root of 3973447 is about 158.3880729167.

It can be divided in two parts, 397 and 3447, that added together give a square (3844 = 62²).

The spelling of 3973447 in words is "three million, nine hundred seventy-three thousand, four hundred forty-seven".