3940589 has 2 divisors, whose sum is σ = 3940590. Its totient is φ = 3940588.

The previous prime is 3940579. The next prime is 3940597. The reversal of 3940589 is 9850493.

3940589 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., 2656900 + 1283689 = 1630^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 3940589 - 2²⁰ = 2892013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3940579) 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, 1970294 + 1970295.

It is an arithmetic number, because the mean of its divisors is an integer number (1970295).

Almost surely, 2^3940589 is an apocalyptic number.

It is an amenable number.

3940589 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940589 is an equidigital number, since it uses as much as digits as its factorization.

3940589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 3940589 is about 1985.0916855400. The cubic root of 3940589 is about 157.9502727663.

The spelling of 3940589 in words is "three million, nine hundred forty thousand, five hundred eighty-nine".