12801966 has 16 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 4244600.

The previous prime is 12801947. The next prime is 12801967. The reversal of 12801966 is 66910821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12801967) 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, 4440 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (1608768).

Almost surely, 2^12801966 is an apocalyptic number.

12801966 is an abundant number, since it is smaller than the sum of its proper divisors (12938322).

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

12801966 is a wasteful number, since it uses less digits than its factorization.

12801966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11367.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12801966 is about 3577.9835103030. The cubic root of 12801966 is about 233.9333947332.

The spelling of 12801966 in words is "twelve million, eight hundred one thousand, nine hundred sixty-six".