12988986 has 16 divisors (see below), whose sum is σ = 27506304. Its totient is φ = 4074944.

The previous prime is 12988957. The next prime is 12989017. The reversal of 12988986 is 68988921.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63570 + ... + 63773.

It is an arithmetic number, because the mean of its divisors is an integer number (1719144).

Almost surely, 2^12988986 is an apocalyptic number.

12988986 is an abundant number, since it is smaller than the sum of its proper divisors (14517318).

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

12988986 is a wasteful number, since it uses less digits than its factorization.

12988986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127365.

The product of its digits is 497664, while the sum is 51.

The square root of 12988986 is about 3604.0235848285. The cubic root of 12988986 is about 235.0670459068.

The spelling of 12988986 in words is "twelve million, nine hundred eighty-eight thousand, nine hundred eighty-six".