3933997 has 2 divisors, whose sum is σ = 3933998. Its totient is φ = 3933996.

The previous prime is 3933977. The next prime is 3934001. The reversal of 3933997 is 7993393.

It is a happy number.

3933997 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 can be written as a sum of positive squares in only one way, i.e., 3048516 + 885481 = 1746^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 3933997 - 2¹⁵ = 3901229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3933907) 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, 1966998 + 1966999.

It is an arithmetic number, because the mean of its divisors is an integer number (1966999).

Almost surely, 2^3933997 is an apocalyptic number.

It is an amenable number.

3933997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3933997 is an equidigital number, since it uses as much as digits as its factorization.

3933997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137781, while the sum is 43.

The square root of 3933997 is about 1983.4306138607. The cubic root of 3933997 is about 157.8621480950.

The spelling of 3933997 in words is "three million, nine hundred thirty-three thousand, nine hundred ninety-seven".