13605797 has 8 divisors (see below), whose sum is σ = 14457816. Its totient is φ = 12759552.

The previous prime is 13605793. The next prime is 13605803. The reversal of 13605797 is 79750631.

It can be written as a sum of positive squares in 4 ways, for example, as 312481 + 13293316 = 559^2 + 3646^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13605797 - 2² = 13605793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13605797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13605793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4043 + ... + 6599.

It is an arithmetic number, because the mean of its divisors is an integer number (1807227).

Almost surely, 2^13605797 is an apocalyptic number.

13605797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13605797 is a deficient number, since it is larger than the sum of its proper divisors (852019).

13605797 is a wasteful number, since it uses less digits than its factorization.

13605797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887.

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

The square root of 13605797 is about 3688.6036653455. The cubic root of 13605797 is about 238.7305483819.

The spelling of 13605797 in words is "thirteen million, six hundred five thousand, seven hundred ninety-seven".