12864977 has 4 divisors (see below), whose sum is σ = 12904176. Its totient is φ = 12825780.

The previous prime is 12864967. The next prime is 12864983. The reversal of 12864977 is 77946821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77946821 = 47 ⋅1658443.

It is a cyclic number.

It is not a de Polignac number, because 12864977 - 2¹⁰ = 12863953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12864947) 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 in 3 ways as a sum of consecutive naturals, for example, 19103 + ... + 19764.

It is an arithmetic number, because the mean of its divisors is an integer number (3226044).

Almost surely, 2^12864977 is an apocalyptic number.

It is an amenable number.

12864977 is a deficient number, since it is larger than the sum of its proper divisors (39199).

12864977 is an equidigital number, since it uses as much as digits as its factorization.

12864977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39198.

The product of its digits is 169344, while the sum is 44.

The square root of 12864977 is about 3586.7780806735. The cubic root of 12864977 is about 234.3165717939.

The spelling of 12864977 in words is "twelve million, eight hundred sixty-four thousand, nine hundred seventy-seven".