12446977 has 4 divisors (see below), whose sum is σ = 12464560. Its totient is φ = 12429396.

The previous prime is 12446947. The next prime is 12446999. The reversal of 12446977 is 77964421.

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: 77964421 = 1009 ⋅77269.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12446977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12446947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7683 + ... + 9160.

It is an arithmetic number, because the mean of its divisors is an integer number (3116140).

Almost surely, 2^12446977 is an apocalyptic number.

It is an amenable number.

12446977 is a deficient number, since it is larger than the sum of its proper divisors (17583).

12446977 is an equidigital number, since it uses as much as digits as its factorization.

12446977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17582.

The product of its digits is 84672, while the sum is 40.

The square root of 12446977 is about 3528.0273525017. The cubic root of 12446977 is about 231.7508286475.

The spelling of 12446977 in words is "twelve million, four hundred forty-six thousand, nine hundred seventy-seven".