12980786 has 48 divisors (see below), whose sum is σ = 25510464. Its totient is φ = 4900896.

The previous prime is 12980783. The next prime is 12980837. The reversal of 12980786 is 68708921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29081 + ... + 29523.

It is an arithmetic number, because the mean of its divisors is an integer number (531468).

Almost surely, 2^12980786 is an apocalyptic number.

12980786 is a deficient number, since it is larger than the sum of its proper divisors (12529678).

12980786 is a wasteful number, since it uses less digits than its factorization.

12980786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 12980786 is about 3602.8857878095. The cubic root of 12980786 is about 235.0175692312.

The spelling of 12980786 in words is "twelve million, nine hundred eighty thousand, seven hundred eighty-six".