12808582 has 16 divisors (see below), whose sum is σ = 20818512. Its totient is φ = 5886720.

The previous prime is 12808529. The next prime is 12808583. The reversal of 12808582 is 28580821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2919 + ... + 5842.

It is an arithmetic number, because the mean of its divisors is an integer number (1301157).

Almost surely, 2^12808582 is an apocalyptic number.

12808582 is a deficient number, since it is larger than the sum of its proper divisors (8009930).

12808582 is a wasteful number, since it uses less digits than its factorization.

12808582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8823.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 12808582 is about 3578.9079339933. The cubic root of 12808582 is about 233.9736863780.

It can be divided in two parts, 1280858 and 2, that multiplied together give a triangular number (2561716 = T₂₂₆₃).

The spelling of 12808582 in words is "twelve million, eight hundred eight thousand, five hundred eighty-two".