12775393 has 4 divisors (see below), whose sum is σ = 12782848. Its totient is φ = 12767940.

The previous prime is 12775369. The next prime is 12775421. The reversal of 12775393 is 39357721.

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-12775393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12775303) 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, 280 + ... + 5062.

It is an arithmetic number, because the mean of its divisors is an integer number (3195712).

Almost surely, 2^12775393 is an apocalyptic number.

It is an amenable number.

12775393 is a deficient number, since it is larger than the sum of its proper divisors (7455).

12775393 is an equidigital number, since it uses as much as digits as its factorization.

12775393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454.

The product of its digits is 39690, while the sum is 37.

The square root of 12775393 is about 3574.2681768440. The cubic root of 12775393 is about 233.7714243472.

It can be divided in two parts, 1277 and 5393, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 12775393 in words is "twelve million, seven hundred seventy-five thousand, three hundred ninety-three".