12750817 has 4 divisors (see below), whose sum is σ = 12807216. Its totient is φ = 12694420.

The previous prime is 12750811. The next prime is 12750823. The reversal of 12750817 is 71805721.

It is a happy number.

12750817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 71805721 = 13 ⋅5523517.

It is an interprime number because it is at equal distance from previous prime (12750811) and next prime (12750823).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12750817 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12750811) 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, 27859 + ... + 28312.

It is an arithmetic number, because the mean of its divisors is an integer number (3201804).

Almost surely, 2^12750817 is an apocalyptic number.

It is an amenable number.

12750817 is a deficient number, since it is larger than the sum of its proper divisors (56399).

12750817 is an equidigital number, since it uses as much as digits as its factorization.

12750817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56398.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 12750817 is about 3570.8286153217. The cubic root of 12750817 is about 233.6214262361.

The spelling of 12750817 in words is "twelve million, seven hundred fifty thousand, eight hundred seventeen".