12957793 has 4 divisors (see below), whose sum is σ = 12968640. Its totient is φ = 12946948.

The previous prime is 12957781. The next prime is 12957797. The reversal of 12957793 is 39775921.

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 not a de Polignac number, because 12957793 - 2⁵ = 12957761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12957797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3373 + ... + 6106.

It is an arithmetic number, because the mean of its divisors is an integer number (3242160).

Almost surely, 2^12957793 is an apocalyptic number.

It is an amenable number.

12957793 is a deficient number, since it is larger than the sum of its proper divisors (10847).

12957793 is an equidigital number, since it uses as much as digits as its factorization.

12957793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10846.

The product of its digits is 119070, while the sum is 43.

The square root of 12957793 is about 3599.6934591712. The cubic root of 12957793 is about 234.8787242057.

The spelling of 12957793 in words is "twelve million, nine hundred fifty-seven thousand, seven hundred ninety-three".