3931093 has 2 divisors, whose sum is σ = 3931094. Its totient is φ = 3931092.

The previous prime is 3931087. The next prime is 3931159. The reversal of 3931093 is 3901393.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2896804 + 1034289 = 1702^2 + 1017^2 .

It is a cyclic number.

It is not a de Polignac number, because 3931093 - 2⁹ = 3930581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3931393) 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, 1965546 + 1965547.

It is an arithmetic number, because the mean of its divisors is an integer number (1965547).

Almost surely, 2^3931093 is an apocalyptic number.

It is an amenable number.

3931093 is a deficient number, since it is larger than the sum of its proper divisors (1).

3931093 is an equidigital number, since it uses as much as digits as its factorization.

3931093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 3931093 is about 1982.6984137786. The cubic root of 3931093 is about 157.8232949450.

The spelling of 3931093 in words is "three million, nine hundred thirty-one thousand, ninety-three".