12393697 has 4 divisors (see below), whose sum is σ = 13122756. Its totient is φ = 11664640.

The previous prime is 12393683. The next prime is 12393739. The reversal of 12393697 is 79639321.

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 5216656 + 7177041 = 2284^2 + 2679^2 .

It is a cyclic number.

It is not a de Polignac number, because 12393697 - 2⁷ = 12393569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12393617) 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 3 ways as a sum of consecutive naturals, for example, 364504 + ... + 364537.

It is an arithmetic number, because the mean of its divisors is an integer number (3280689).

Almost surely, 2^12393697 is an apocalyptic number.

12393697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12393697 is a deficient number, since it is larger than the sum of its proper divisors (729059).

12393697 is an equidigital number, since it uses as much as digits as its factorization.

12393697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729058.

The product of its digits is 61236, while the sum is 40.

The square root of 12393697 is about 3520.4682927133. The cubic root of 12393697 is about 231.4196814543.

The spelling of 12393697 in words is "twelve million, three hundred ninety-three thousand, six hundred ninety-seven".