12827680 has 24 divisors (see below), whose sum is σ = 30305772. Its totient is φ = 5131008.

The previous prime is 12827669. The next prime is 12827693. The reversal of 12827680 is 8672821.

It can be written as a sum of positive squares in 2 ways, for example, as 12194064 + 633616 = 3492^2 + 796^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39927 + ... + 40246.

Almost surely, 2^12827680 is an apocalyptic number.

12827680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12827680 is an abundant number, since it is smaller than the sum of its proper divisors (17478092).

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

12827680 is an equidigital number, since it uses as much as digits as its factorization.

12827680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80188 (or 80180 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 12827680 is about 3581.5750725065. The cubic root of 12827680 is about 234.0899160133.

The spelling of 12827680 in words is "twelve million, eight hundred twenty-seven thousand, six hundred eighty".