12977446 has 8 divisors (see below), whose sum is σ = 19685160. Its totient is φ = 6415728.

The previous prime is 12977441. The next prime is 12977449. The reversal of 12977446 is 64477921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12977399 and 12977408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12977441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36276 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (2460645).

Almost surely, 2^12977446 is an apocalyptic number.

12977446 is a deficient number, since it is larger than the sum of its proper divisors (6707714).

12977446 is an equidigital number, since it uses as much as digits as its factorization.

12977446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72998.

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

The square root of 12977446 is about 3602.4222406597. The cubic root of 12977446 is about 234.9974105645.

The spelling of 12977446 in words is "twelve million, nine hundred seventy-seven thousand, four hundred forty-six".