12397793 has 4 divisors (see below), whose sum is σ = 12547248. Its totient is φ = 12248340.

The previous prime is 12397787. The next prime is 12397817. The reversal of 12397793 is 39779321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12397793 - 2⁸ = 12397537 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 12397793.

It is not an unprimeable number, because it can be changed into a prime (12397733) 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, 74603 + ... + 74768.

It is an arithmetic number, because the mean of its divisors is an integer number (3136812).

Almost surely, 2^12397793 is an apocalyptic number.

It is an amenable number.

12397793 is a deficient number, since it is larger than the sum of its proper divisors (149455).

12397793 is an equidigital number, since it uses as much as digits as its factorization.

12397793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149454.

The product of its digits is 71442, while the sum is 41.

The square root of 12397793 is about 3521.0499854447. The cubic root of 12397793 is about 231.4451726538.

The spelling of 12397793 in words is "twelve million, three hundred ninety-seven thousand, seven hundred ninety-three".