12807860 has 24 divisors (see below), whose sum is σ = 28966056. Its totient is φ = 4728960.

The previous prime is 12807859. The next prime is 12807869. The reversal of 12807860 is 6870821.

It can be written as a sum of positive squares in 4 ways, for example, as 5776 + 12802084 = 76^2 + 3578^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12807869) 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 7 ways as a sum of consecutive naturals, for example, 24371 + ... + 24890.

It is an arithmetic number, because the mean of its divisors is an integer number (1206919).

Almost surely, 2^12807860 is an apocalyptic number.

12807860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12807860 is an abundant number, since it is smaller than the sum of its proper divisors (16158196).

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

12807860 is a wasteful number, since it uses less digits than its factorization.

12807860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49283 (or 49281 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 12807860 is about 3578.8070638133. The cubic root of 12807860 is about 233.9692900502.

The spelling of 12807860 in words is "twelve million, eight hundred seven thousand, eight hundred sixty".