12798771 has 4 divisors (see below), whose sum is σ = 17065032. Its totient is φ = 8532512.

The previous prime is 12798767. The next prime is 12798791. The reversal of 12798771 is 17789721.

12798771 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 an emirpimes, since its reverse is a distinct semiprime: 17789721 = 3 ⋅5929907.

It is a cyclic number.

It is not a de Polignac number, because 12798771 - 2² = 12798767 is a prime.

It is a super-2 number, since 2×12798771² = 327617078220882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12798791) 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, 2133126 + ... + 2133131.

It is an arithmetic number, because the mean of its divisors is an integer number (4266258).

Almost surely, 2^12798771 is an apocalyptic number.

12798771 is a deficient number, since it is larger than the sum of its proper divisors (4266261).

12798771 is an equidigital number, since it uses as much as digits as its factorization.

12798771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266260.

The product of its digits is 49392, while the sum is 42.

The square root of 12798771 is about 3577.5370019051. The cubic root of 12798771 is about 233.9139321137.

The spelling of 12798771 in words is "twelve million, seven hundred ninety-eight thousand, seven hundred seventy-one".