12772646 has 4 divisors (see below), whose sum is σ = 19158972. Its totient is φ = 6386322.

The previous prime is 12772633. The next prime is 12772649. The reversal of 12772646 is 64627721.

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 (12772649) 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 as a sum of consecutive naturals, namely, 3193160 + ... + 3193163.

It is an arithmetic number, because the mean of its divisors is an integer number (4789743).

Almost surely, 2^12772646 is an apocalyptic number.

12772646 is a deficient number, since it is larger than the sum of its proper divisors (6386326).

12772646 is an equidigital number, since it uses as much as digits as its factorization.

12772646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386325.

The product of its digits is 28224, while the sum is 35.

The square root of 12772646 is about 3573.8838817175. The cubic root of 12772646 is about 233.7546677555.

The spelling of 12772646 in words is "twelve million, seven hundred seventy-two thousand, six hundred forty-six".