12797975 has 12 divisors (see below), whose sum is σ = 15936480. Its totient is φ = 10195200.

The previous prime is 12797971. The next prime is 12797987. The reversal of 12797975 is 57979721.

It is not a de Polignac number, because 12797975 - 2² = 12797971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12797971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5831 + ... + 7719.

It is an arithmetic number, because the mean of its divisors is an integer number (1328040).

Almost surely, 2^12797975 is an apocalyptic number.

12797975 is a deficient number, since it is larger than the sum of its proper divisors (3138505).

12797975 is a wasteful number, since it uses less digits than its factorization.

12797975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170 (or 2165 counting only the distinct ones).

The product of its digits is 277830, while the sum is 47.

The square root of 12797975 is about 3577.4257504524. The cubic root of 12797975 is about 233.9090827066.

The spelling of 12797975 in words is "twelve million, seven hundred ninety-seven thousand, nine hundred seventy-five".