12980421 has 12 divisors (see below), whose sum is σ = 18794880. Its totient is φ = 8632680.

The previous prime is 12980399. The next prime is 12980431. The reversal of 12980421 is 12408921.

It is not a de Polignac number, because 12980421 - 2⁹ = 12979909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2806 + ... + 5816.

It is an arithmetic number, because the mean of its divisors is an integer number (1566240).

Almost surely, 2^12980421 is an apocalyptic number.

It is an amenable number.

12980421 is a deficient number, since it is larger than the sum of its proper divisors (5814459).

12980421 is a wasteful number, since it uses less digits than its factorization.

12980421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496 (or 3493 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12980421 is about 3602.8351336135. The cubic root of 12980421 is about 235.0153664314.

The spelling of 12980421 in words is "twelve million, nine hundred eighty thousand, four hundred twenty-one".