12775403 has 4 divisors (see below), whose sum is σ = 12785880. Its totient is φ = 12764928.

The previous prime is 12775369. The next prime is 12775421. The reversal of 12775403 is 30457721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30457721 = 7 ⋅4351103.

It is a cyclic number.

It is not a de Polignac number, because 12775403 - 2¹² = 12771307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12775463) 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, 3125 + ... + 5942.

It is an arithmetic number, because the mean of its divisors is an integer number (3196470).

Almost surely, 2^12775403 is an apocalyptic number.

12775403 is a deficient number, since it is larger than the sum of its proper divisors (10477).

12775403 is an equidigital number, since it uses as much as digits as its factorization.

12775403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10476.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 12775403 is about 3574.2695757315. The cubic root of 12775403 is about 233.7714853424.

The spelling of 12775403 in words is "twelve million, seven hundred seventy-five thousand, four hundred three".