12876660 has 36 divisors (see below), whose sum is σ = 39059748. Its totient is φ = 3433728.

The previous prime is 12876659. The next prime is 12876671. The reversal of 12876660 is 6667821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 8054244 = 2196^2 + 2838^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 35589 + ... + 35948.

It is an arithmetic number, because the mean of its divisors is an integer number (1084993).

Almost surely, 2^12876660 is an apocalyptic number.

12876660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12876660 is an abundant number, since it is smaller than the sum of its proper divisors (26183088).

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

12876660 is a wasteful number, since it uses less digits than its factorization.

12876660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71552 (or 71547 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 12876660 is about 3588.4063315071. The cubic root of 12876660 is about 234.3874798688.

The spelling of 12876660 in words is "twelve million, eight hundred seventy-six thousand, six hundred sixty".