12872446 has 4 divisors (see below), whose sum is σ = 19308672. Its totient is φ = 6436222.

The previous prime is 12872441. The next prime is 12872449. The reversal of 12872446 is 64427821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3218110 + ... + 3218113.

It is an arithmetic number, because the mean of its divisors is an integer number (4827168).

Almost surely, 2^12872446 is an apocalyptic number.

12872446 is a deficient number, since it is larger than the sum of its proper divisors (6436226).

12872446 is an equidigital number, since it uses as much as digits as its factorization.

12872446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436225.

The product of its digits is 21504, while the sum is 34.

The square root of 12872446 is about 3587.8191147269. The cubic root of 12872446 is about 234.3619086258.

The spelling of 12872446 in words is "twelve million, eight hundred seventy-two thousand, four hundred forty-six".