12828439 has 16 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 11115360.

The previous prime is 12828427. The next prime is 12828461. The reversal of 12828439 is 93482821.

It is a cyclic number.

It is not a de Polignac number, because 12828439 - 2⁵ = 12828407 is a prime.

It is a super-3 number, since 3×12828439³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12828398 and 12828407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12828499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41094 + ... + 41404.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^12828439 is an apocalyptic number.

12828439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12828439 is a deficient number, since it is larger than the sum of its proper divisors (1848041).

12828439 is a wasteful number, since it uses less digits than its factorization.

12828439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510.

The product of its digits is 27648, while the sum is 37.

The square root of 12828439 is about 3581.6810299076. The cubic root of 12828439 is about 234.0945328716.

The spelling of 12828439 in words is "twelve million, eight hundred twenty-eight thousand, four hundred thirty-nine".