12986801 has 2 divisors, whose sum is σ = 12986802. Its totient is φ = 12986800.

The previous prime is 12986797. The next prime is 12986807. The reversal of 12986801 is 10868921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12967201 + 19600 = 3601^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 12986801 - 2² = 12986797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12986807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6493400 + 6493401.

It is an arithmetic number, because the mean of its divisors is an integer number (6493401).

Almost surely, 2^12986801 is an apocalyptic number.

It is an amenable number.

12986801 is a deficient number, since it is larger than the sum of its proper divisors (1).

12986801 is an equidigital number, since it uses as much as digits as its factorization.

12986801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 12986801 is about 3603.7204386578. The cubic root of 12986801 is about 235.0538642184.

The spelling of 12986801 in words is "twelve million, nine hundred eighty-six thousand, eight hundred one".