12173393 has 4 divisors (see below), whose sum is σ = 12180480. Its totient is φ = 12166308.

The previous prime is 12173387. The next prime is 12173419. The reversal of 12173393 is 39337121.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12173393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12173303) 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, 848 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (3045120).

Almost surely, 2^12173393 is an apocalyptic number.

It is an amenable number.

12173393 is a deficient number, since it is larger than the sum of its proper divisors (7087).

12173393 is an equidigital number, since it uses as much as digits as its factorization.

12173393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086.

The product of its digits is 3402, while the sum is 29.

The square root of 12173393 is about 3489.0389794326. The cubic root of 12173393 is about 230.0402765004.

The spelling of 12173393 in words is "twelve million, one hundred seventy-three thousand, three hundred ninety-three".