3931001 has 2 divisors, whose sum is σ = 3931002. Its totient is φ = 3931000.

The previous prime is 3930989. The next prime is 3931027. The reversal of 3931001 is 1001393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 89401 = 1960^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 3931001 - 2¹⁰ = 3929977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3931051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965500 + 1965501.

It is an arithmetic number, because the mean of its divisors is an integer number (1965501).

Almost surely, 2^3931001 is an apocalyptic number.

It is an amenable number.

3931001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3931001 is an equidigital number, since it uses as much as digits as its factorization.

3931001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 3931001 is about 1982.6752129383. The cubic root of 3931001 is about 157.8220637474.

Adding to 3931001 its reverse (1001393), we get a palindrome (4932394).

It can be divided in two parts, 393 and 1001, that multiplied together give a palindrome (393393).

The spelling of 3931001 in words is "three million, nine hundred thirty-one thousand, one".