3939413 has 4 divisors (see below), whose sum is σ = 3970560. Its totient is φ = 3908268.

The previous prime is 3939379. The next prime is 3939421. The reversal of 3939413 is 3149393.

3939413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3149393 = 13 ⋅242261.

It is a cyclic number.

It is not a de Polignac number, because 3939413 - 2⁶ = 3939349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3939413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939433) 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 in 3 ways as a sum of consecutive naturals, for example, 15383 + ... + 15636.

It is an arithmetic number, because the mean of its divisors is an integer number (992640).

Almost surely, 2^3939413 is an apocalyptic number.

It is an amenable number.

3939413 is a deficient number, since it is larger than the sum of its proper divisors (31147).

3939413 is a wasteful number, since it uses less digits than its factorization.

3939413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31146.

The product of its digits is 8748, while the sum is 32.

The square root of 3939413 is about 1984.7954554563. The cubic root of 3939413 is about 157.9345587025.

The spelling of 3939413 in words is "three million, nine hundred thirty-nine thousand, four hundred thirteen".