13697705 has 24 divisors (see below), whose sum is σ = 19294272. Its totient is φ = 9335088.

The previous prime is 13697701. The next prime is 13697729. The reversal of 13697705 is 50779631.

It is not a de Polignac number, because 13697705 - 2² = 13697701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13697701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83954 + ... + 84116.

It is an arithmetic number, because the mean of its divisors is an integer number (803928).

Almost surely, 2^13697705 is an apocalyptic number.

It is an amenable number.

13697705 is a deficient number, since it is larger than the sum of its proper divisors (5596567).

13697705 is an frugal number, since it uses more digits than its factorization.

13697705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 13697705 is about 3701.0410697532. The cubic root of 13697705 is about 239.2668890557.

The spelling of 13697705 in words is "thirteen million, six hundred ninety-seven thousand, seven hundred five".