12828397 has 8 divisors (see below), whose sum is σ = 13095936. Its totient is φ = 12563712.

The previous prime is 12828377. The next prime is 12828407. The reversal of 12828397 is 79382821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12828397 is a prime.

It is a super-3 number, since 3×12828397³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12828317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9933 + ... + 11149.

It is an arithmetic number, because the mean of its divisors is an integer number (1636992).

Almost surely, 2^12828397 is an apocalyptic number.

It is an amenable number.

12828397 is a deficient number, since it is larger than the sum of its proper divisors (267539).

12828397 is a wasteful number, since it uses less digits than its factorization.

12828397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427.

The product of its digits is 48384, while the sum is 40.

The square root of 12828397 is about 3581.6751667341. The cubic root of 12828397 is about 234.0942773981.

It can be divided in two parts, 12828 and 397, that added together give a square (13225 = 115²).

The spelling of 12828397 in words is "twelve million, eight hundred twenty-eight thousand, three hundred ninety-seven".