3957913 has 4 divisors (see below), whose sum is σ = 3964468. Its totient is φ = 3951360.

The previous prime is 3957907. The next prime is 3957929. The reversal of 3957913 is 3197593.

3957913 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2350089 + 1607824 = 1533^2 + 1268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3957913 is a prime.

It is a Duffinian number.

3957913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3957953) 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, 2268 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (991117).

Almost surely, 2^3957913 is an apocalyptic number.

It is an amenable number.

3957913 is a deficient number, since it is larger than the sum of its proper divisors (6555).

3957913 is an equidigital number, since it uses as much as digits as its factorization.

3957913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6554.

The product of its digits is 25515, while the sum is 37.

The square root of 3957913 is about 1989.4504266254. The cubic root of 3957913 is about 158.1813998375.

The spelling of 3957913 in words is "three million, nine hundred fifty-seven thousand, nine hundred thirteen".