13968413 has 4 divisors (see below), whose sum is σ = 14309148. Its totient is φ = 13627680.

The previous prime is 13968397. The next prime is 13968443. The reversal of 13968413 is 31486931.

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 994009 + 12974404 = 997^2 + 3602^2 .

It is a cyclic number.

It is not a de Polignac number, because 13968413 - 2⁴ = 13968397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13968443) 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, 170306 + ... + 170387.

It is an arithmetic number, because the mean of its divisors is an integer number (3577287).

Almost surely, 2^13968413 is an apocalyptic number.

It is an amenable number.

13968413 is a deficient number, since it is larger than the sum of its proper divisors (340735).

13968413 is an equidigital number, since it uses as much as digits as its factorization.

13968413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340734.

The product of its digits is 15552, while the sum is 35.

The square root of 13968413 is about 3737.4340127954. The cubic root of 13968413 is about 240.8328300124.

The spelling of 13968413 in words is "thirteen million, nine hundred sixty-eight thousand, four hundred thirteen".