13696785 has 12 divisors (see below), whose sum is σ = 23741172. Its totient is φ = 7304928.

The previous prime is 13696769. The next prime is 13696789. The reversal of 13696785 is 58769631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8661249 + 5035536 = 2943^2 + 2244^2 .

It is not a de Polignac number, because 13696785 - 2⁴ = 13696769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 304373 = 13696785 / (1 + 3 + 6 + 9 + 6 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 13696785.

It is not an unprimeable number, because it can be changed into a prime (13696789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152142 + ... + 152231.

It is an arithmetic number, because the mean of its divisors is an integer number (1978431).

Almost surely, 2^13696785 is an apocalyptic number.

13696785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13696785 is a deficient number, since it is larger than the sum of its proper divisors (10044387).

13696785 is a wasteful number, since it uses less digits than its factorization.

13696785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304384 (or 304381 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 13696785 is about 3700.9167783132. The cubic root of 13696785 is about 239.2615321859.

The spelling of 13696785 in words is "thirteen million, six hundred ninety-six thousand, seven hundred eighty-five".