12828531 has 8 divisors (see below), whose sum is σ = 17522064. Its totient is φ = 8343680.

The previous prime is 12828511. The next prime is 12828539. The reversal of 12828531 is 13582821.

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

It is a cyclic number.

It is not a de Polignac number, because 12828531 - 2⁵ = 12828499 is a prime.

It is a super-3 number, since 3×12828531³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12828539) 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, 52026 + ... + 52271.

It is an arithmetic number, because the mean of its divisors is an integer number (2190258).

Almost surely, 2^12828531 is an apocalyptic number.

12828531 is a deficient number, since it is larger than the sum of its proper divisors (4693533).

12828531 is a wasteful number, since it uses less digits than its factorization.

12828531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104341.

The product of its digits is 3840, while the sum is 30.

The square root of 12828531 is about 3581.6938730160. The cubic root of 12828531 is about 234.0950924784.

The spelling of 12828531 in words is "twelve million, eight hundred twenty-eight thousand, five hundred thirty-one".