13689097 has 4 divisors (see below), whose sum is σ = 14494356. Its totient is φ = 12883840.

The previous prime is 13689061. The next prime is 13689113. The reversal of 13689097 is 79098631.

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 3728761 + 9960336 = 1931^2 + 3156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13689097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13689017) 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, 402604 + ... + 402637.

It is an arithmetic number, because the mean of its divisors is an integer number (3623589).

Almost surely, 2^13689097 is an apocalyptic number.

13689097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13689097 is a deficient number, since it is larger than the sum of its proper divisors (805259).

13689097 is an equidigital number, since it uses as much as digits as its factorization.

13689097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805258.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13689097 is about 3699.8779709607. The cubic root of 13689097 is about 239.2167580065.

The spelling of 13689097 in words is "thirteen million, six hundred eighty-nine thousand, ninety-seven".