12877986 has 16 divisors (see below), whose sum is σ = 28097568. Its totient is φ = 3902400.

The previous prime is 12877981. The next prime is 12878017. The reversal of 12877986 is 68977821.

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 in 7 ways as a sum of consecutive naturals, for example, 97495 + ... + 97626.

It is an arithmetic number, because the mean of its divisors is an integer number (1756098).

Almost surely, 2^12877986 is an apocalyptic number.

12877986 is an abundant number, since it is smaller than the sum of its proper divisors (15219582).

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

12877986 is a wasteful number, since it uses less digits than its factorization.

12877986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195137.

The product of its digits is 338688, while the sum is 48.

The square root of 12877986 is about 3588.5910884357. The cubic root of 12877986 is about 234.3955251003.

The spelling of 12877986 in words is "twelve million, eight hundred seventy-seven thousand, nine hundred eighty-six".