12977846 has 24 divisors (see below), whose sum is σ = 22820976. Its totient is φ = 5518800.

The previous prime is 12977843. The next prime is 12977857. The reversal of 12977846 is 64877921.

It is a junction number, because it is equal to n+sod(n) for n = 12977797 and 12977806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12977843) 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 11 ways as a sum of consecutive naturals, for example, 14360 + ... + 15236.

It is an arithmetic number, because the mean of its divisors is an integer number (950874).

Almost surely, 2^12977846 is an apocalyptic number.

12977846 is a deficient number, since it is larger than the sum of its proper divisors (9843130).

12977846 is a wasteful number, since it uses less digits than its factorization.

12977846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1037 counting only the distinct ones).

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

The square root of 12977846 is about 3602.4777584324. The cubic root of 12977846 is about 234.9998249584. Note that the first 3 decimals are identical.

The spelling of 12977846 in words is "twelve million, nine hundred seventy-seven thousand, eight hundred forty-six".