13697318 has 4 divisors (see below), whose sum is σ = 20545980. Its totient is φ = 6848658.

The previous prime is 13697293. The next prime is 13697323. The reversal of 13697318 is 81379631.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424328 + ... + 3424331.

It is an arithmetic number, because the mean of its divisors is an integer number (5136495).

Almost surely, 2^13697318 is an apocalyptic number.

13697318 is a deficient number, since it is larger than the sum of its proper divisors (6848662).

13697318 is an equidigital number, since it uses as much as digits as its factorization.

13697318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848661.

The product of its digits is 27216, while the sum is 38.

The square root of 13697318 is about 3700.9887867974. The cubic root of 13697318 is about 239.2646357060.

The spelling of 13697318 in words is "thirteen million, six hundred ninety-seven thousand, three hundred eighteen".