12726990 has 32 divisors (see below), whose sum is σ = 33939360. Its totient is φ = 3393792.

The previous prime is 12726977. The next prime is 12727003. The reversal of 12726990 is 9962721.

It is an interprime number because it is at equal distance from previous prime (12726977) and next prime (12727003).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 23299 + ... + 23838.

It is an arithmetic number, because the mean of its divisors is an integer number (1060605).

Almost surely, 2^12726990 is an apocalyptic number.

12726990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12726990 is an abundant number, since it is smaller than the sum of its proper divisors (21212370).

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

12726990 is a wasteful number, since it uses less digits than its factorization.

12726990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47153 (or 47147 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 12726990 is about 3567.4907147742. The cubic root of 12726990 is about 233.4758154717.

The spelling of 12726990 in words is "twelve million, seven hundred twenty-six thousand, nine hundred ninety".