13968005 has 8 divisors (see below), whose sum is σ = 16875000. Its totient is φ = 11098816.

The previous prime is 13968001. The next prime is 13968037. The reversal of 13968005 is 50086931.

It can be written as a sum of positive squares in 4 ways, for example, as 432964 + 13535041 = 658^2 + 3679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13968005 - 2² = 13968001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13968001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8630 + ... + 10119.

It is an arithmetic number, because the mean of its divisors is an integer number (2109375).

Almost surely, 2^13968005 is an apocalyptic number.

It is an amenable number.

13968005 is a deficient number, since it is larger than the sum of its proper divisors (2906995).

13968005 is a wasteful number, since it uses less digits than its factorization.

13968005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18903.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 13968005 is about 3737.3794294933. The cubic root of 13968005 is about 240.8304851803.

The spelling of 13968005 in words is "thirteen million, nine hundred sixty-eight thousand, five".