12828231 has 24 divisors (see below), whose sum is σ = 20210736. Its totient is φ = 7793280.

The previous prime is 12828223. The next prime is 12828253. The reversal of 12828231 is 13282821.

It is not a de Polignac number, because 12828231 - 2³ = 12828223 is a prime.

It is a super-3 number, since 3×12828231³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12828195 and 12828204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12828271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9051 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (842114).

Almost surely, 2^12828231 is an apocalyptic number.

12828231 is a deficient number, since it is larger than the sum of its proper divisors (7382505).

12828231 is a wasteful number, since it uses less digits than its factorization.

12828231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1420 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 12828231 is about 3581.6519931451. The cubic root of 12828231 is about 234.0932676638.

The spelling of 12828231 in words is "twelve million, eight hundred twenty-eight thousand, two hundred thirty-one".