13936694 has 4 divisors (see below), whose sum is σ = 20905044. Its totient is φ = 6968346.

The previous prime is 13936691. The next prime is 13936729. The reversal of 13936694 is 49663931.

Added to its reverse (49663931) it gives a square (63600625 = 7975²).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49663931 = 3067 ⋅16193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13936691) 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 as a sum of consecutive naturals, namely, 3484172 + ... + 3484175.

It is an arithmetic number, because the mean of its divisors is an integer number (5226261).

Almost surely, 2^13936694 is an apocalyptic number.

13936694 is a deficient number, since it is larger than the sum of its proper divisors (6968350).

13936694 is an equidigital number, since it uses as much as digits as its factorization.

13936694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6968349.

The product of its digits is 104976, while the sum is 41.

The square root of 13936694 is about 3733.1881817021. The cubic root of 13936694 is about 240.6504001747.

Adding to 13936694 its reverse (49663931), we get a square (63600625 = 7975²).

The spelling of 13936694 in words is "thirteen million, nine hundred thirty-six thousand, six hundred ninety-four".