12828297 has 4 divisors (see below), whose sum is σ = 17104400. Its totient is φ = 8552196.

The previous prime is 12828293. The next prime is 12828317. The reversal of 12828297 is 79282821.

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: 79282821 = 3 ⋅26427607.

It is not a de Polignac number, because 12828297 - 2² = 12828293 is a prime.

It is a super-3 number, since 3×12828297³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12828293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138047 + ... + 2138052.

It is an arithmetic number, because the mean of its divisors is an integer number (4276100).

Almost surely, 2^12828297 is an apocalyptic number.

It is an amenable number.

12828297 is a deficient number, since it is larger than the sum of its proper divisors (4276103).

12828297 is an equidigital number, since it uses as much as digits as its factorization.

12828297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276102.

The product of its digits is 32256, while the sum is 39.

The square root of 12828297 is about 3581.6612067587. The cubic root of 12828297 is about 234.0936691254.

The spelling of 12828297 in words is "twelve million, eight hundred twenty-eight thousand, two hundred ninety-seven".