12973866 has 16 divisors (see below), whose sum is σ = 26085888. Its totient is φ = 4301600.

The previous prime is 12973861. The next prime is 12973867. The reversal of 12973866 is 66837921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12973861) 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, 4515 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (1630368).

Almost surely, 2^12973866 is an apocalyptic number.

12973866 is an abundant number, since it is smaller than the sum of its proper divisors (13112022).

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

12973866 is a wasteful number, since it uses less digits than its factorization.

12973866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11517.

The product of its digits is 108864, while the sum is 42.

The square root of 12973866 is about 3601.9253184929. The cubic root of 12973866 is about 234.9757995299.

The spelling of 12973866 in words is "twelve million, nine hundred seventy-three thousand, eight hundred sixty-six".