13938635 has 4 divisors (see below), whose sum is σ = 16726368. Its totient is φ = 11150904.

The previous prime is 13938581. The next prime is 13938671. The reversal of 13938635 is 53683931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13938635 - 2¹⁰ = 13937611 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393859 + ... + 1393868.

It is an arithmetic number, because the mean of its divisors is an integer number (4181592).

Almost surely, 2^13938635 is an apocalyptic number.

13938635 is a deficient number, since it is larger than the sum of its proper divisors (2787733).

13938635 is an equidigital number, since it uses as much as digits as its factorization.

13938635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787732.

The product of its digits is 58320, while the sum is 38.

The square root of 13938635 is about 3733.4481381158. The cubic root of 13938635 is about 240.6615716607.

The spelling of 13938635 in words is "thirteen million, nine hundred thirty-eight thousand, six hundred thirty-five".