12877988 has 6 divisors (see below), whose sum is σ = 22536486. Its totient is φ = 6438992.

The previous prime is 12877981. The next prime is 12878017. The reversal of 12877988 is 88977821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7011904 + 5866084 = 2648^2 + 2422^2 .

It is not an unprimeable number, because it can be changed into a prime (12877981) 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 as a sum of consecutive naturals, namely, 1609745 + ... + 1609752.

It is an arithmetic number, because the mean of its divisors is an integer number (3756081).

Almost surely, 2^12877988 is an apocalyptic number.

It is an amenable number.

12877988 is a deficient number, since it is larger than the sum of its proper divisors (9658498).

12877988 is a wasteful number, since it uses less digits than its factorization.

12877988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219501 (or 3219499 counting only the distinct ones).

The product of its digits is 451584, while the sum is 50.

The square root of 12877988 is about 3588.5913670966. The cubic root of 12877988 is about 234.3955372344.

The spelling of 12877988 in words is "twelve million, eight hundred seventy-seven thousand, nine hundred eighty-eight".