12800008 has 16 divisors (see below), whose sum is σ = 25846380. Its totient is φ = 5907648.

The previous prime is 12799987. The next prime is 12800009. The reversal of 12800008 is 80000821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12124324 + 675684 = 3482^2 + 822^2 .

It is not an unprimeable number, because it can be changed into a prime (12800009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61435 + ... + 61642.

Almost surely, 2^12800008 is an apocalyptic number.

It is an amenable number.

12800008 is an abundant number, since it is smaller than the sum of its proper divisors (13046372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12800008 is a wasteful number, since it uses less digits than its factorization.

12800008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123096 (or 123092 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 12800008 is about 3577.7098820335. The cubic root of 12800008 is about 233.9214677906.

Adding to 12800008 its reverse (80000821), we get a palindrome (92800829).

It can be divided in two parts, 1280000 and 8, that multiplied together give a square (10240000 = 3200²).

The spelling of 12800008 in words is "twelve million, eight hundred thousand, eight".