13694 has 8 divisors (see below), whose sum is σ = 21168. Its totient is φ = 6640.

The previous prime is 13693. The next prime is 13697. The reversal of 13694 is 49631.

13694 = 57² + 58² + ... + 60².

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

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 165.

It is an arithmetic number, because the mean of its divisors is an integer number (2646).

2¹³⁶⁹⁴ is an apocalyptic number.

13694 is a deficient number, since it is larger than the sum of its proper divisors (7474).

13694 is a wasteful number, since it uses less digits than its factorization.

13694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its digits is 648, while the sum is 23.

The square root of 13694 is about 117.0213655706. The cubic root of 13694 is about 23.9245314547.

Subtracting 13694 from its reverse (49631), we obtain a cube (35937 = 33³).

It can be divided in two parts, 1369 and 4, that multiplied together give a square (5476 = 74²).

The spelling of 13694 in words is "thirteen thousand, six hundred ninety-four".