12406986 has 16 divisors (see below), whose sum is σ = 27571200. Its totient is φ = 4135644.

The previous prime is 12406967. The next prime is 12406987. The reversal of 12406986 is 68960421.

12406986 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12406986.

It is not an unprimeable number, because it can be changed into a prime (12406987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114826 + ... + 114933.

It is an arithmetic number, because the mean of its divisors is an integer number (1723200).

Almost surely, 2^12406986 is an apocalyptic number.

12406986 is an abundant number, since it is smaller than the sum of its proper divisors (15164214).

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

12406986 is a wasteful number, since it uses less digits than its factorization.

12406986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229770 (or 229764 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 12406986 is about 3522.3551780024. The cubic root of 12406986 is about 231.5023642792.

The spelling of 12406986 in words is "twelve million, four hundred six thousand, nine hundred eighty-six".