12884439 has 32 divisors (see below), whose sum is σ = 19077120. Its totient is φ = 7707392.

The previous prime is 12884423. The next prime is 12884447. The reversal of 12884439 is 93448821.

12884439 = T₁₂ + T₁₃ + ... + T₄₂₅.

It is not a de Polignac number, because 12884439 - 2⁴ = 12884423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12884397 and 12884406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12884449) 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 31 ways as a sum of consecutive naturals, for example, 93979 + ... + 94115.

It is an arithmetic number, because the mean of its divisors is an integer number (596160).

Almost surely, 2^12884439 is an apocalyptic number.

12884439 is a deficient number, since it is larger than the sum of its proper divisors (6192681).

12884439 is a wasteful number, since it uses less digits than its factorization.

12884439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its digits is 55296, while the sum is 39.

The square root of 12884439 is about 3589.4900752057. The cubic root of 12884439 is about 234.4346694653.

The spelling of 12884439 in words is "twelve million, eight hundred eighty-four thousand, four hundred thirty-nine".