13699337 has 4 divisors (see below), whose sum is σ = 13835076. Its totient is φ = 13563600.

The previous prime is 13699313. The next prime is 13699381. The reversal of 13699337 is 73399631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13097161 + 602176 = 3619^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 13699337 - 2²⁰ = 12650761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13699294 and 13699303.

It is not an unprimeable number, because it can be changed into a prime (13699307) 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, 67718 + ... + 67919.

It is an arithmetic number, because the mean of its divisors is an integer number (3458769).

Almost surely, 2^13699337 is an apocalyptic number.

It is an amenable number.

13699337 is a deficient number, since it is larger than the sum of its proper divisors (135739).

13699337 is a wasteful number, since it uses less digits than its factorization.

13699337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135738.

The product of its digits is 91854, while the sum is 41.

The square root of 13699337 is about 3701.2615416909. The cubic root of 13699337 is about 239.2763910867.

The spelling of 13699337 in words is "thirteen million, six hundred ninety-nine thousand, three hundred thirty-seven".