12980663 has 4 divisors (see below), whose sum is σ = 13036608. Its totient is φ = 12924720.

The previous prime is 12980633. The next prime is 12980677. The reversal of 12980663 is 36608921.

12980663 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12980663 - 2¹² = 12976567 is a prime.

It is a super-2 number, since 2×12980663² = 336995223839138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27623 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (3259152).

Almost surely, 2^12980663 is an apocalyptic number.

12980663 is a deficient number, since it is larger than the sum of its proper divisors (55945).

12980663 is an equidigital number, since it uses as much as digits as its factorization.

12980663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55944.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 12980663 is about 3602.8687181189. The cubic root of 12980663 is about 235.0168269225.

The spelling of 12980663 in words is "twelve million, nine hundred eighty thousand, six hundred sixty-three".