3949013 has 2 divisors, whose sum is σ = 3949014. Its totient is φ = 3949012.

The previous prime is 3949007. The next prime is 3949027. The reversal of 3949013 is 3109493.

3949013 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 can be written as a sum of positive squares in only one way, i.e., 3659569 + 289444 = 1913^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 3949013 - 2²⁰ = 2900437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3949003) 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, 1974506 + 1974507.

It is an arithmetic number, because the mean of its divisors is an integer number (1974507).

Almost surely, 2^3949013 is an apocalyptic number.

It is an amenable number.

3949013 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949013 is an equidigital number, since it uses as much as digits as its factorization.

3949013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3949013 is about 1987.2123691241. The cubic root of 3949013 is about 158.0627454684.

The spelling of 3949013 in words is "three million, nine hundred forty-nine thousand, thirteen".