13936814 has 4 divisors (see below), whose sum is σ = 20905224. Its totient is φ = 6968406.

The previous prime is 13936799. The next prime is 13936817. The reversal of 13936814 is 41863931.

13936814 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 an emirpimes, since its reverse is a distinct semiprime: 41863931 = 4129 ⋅10139.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13936817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3484202 + ... + 3484205.

It is an arithmetic number, because the mean of its divisors is an integer number (5226306).

Almost surely, 2^13936814 is an apocalyptic number.

13936814 is a deficient number, since it is larger than the sum of its proper divisors (6968410).

13936814 is an equidigital number, since it uses as much as digits as its factorization.

13936814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6968409.

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

The square root of 13936814 is about 3733.2042537209. The cubic root of 13936814 is about 240.6510908685.

The spelling of 13936814 in words is "thirteen million, nine hundred thirty-six thousand, eight hundred fourteen".