12827649 has 4 divisors (see below), whose sum is σ = 17103536. Its totient is φ = 8551764.

The previous prime is 12827627. The next prime is 12827653. The reversal of 12827649 is 94672821.

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.

It is not a de Polignac number, because 12827649 - 2⁸ = 12827393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12827609) 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, 2137939 + ... + 2137944.

It is an arithmetic number, because the mean of its divisors is an integer number (4275884).

Almost surely, 2^12827649 is an apocalyptic number.

It is an amenable number.

12827649 is a deficient number, since it is larger than the sum of its proper divisors (4275887).

12827649 is an equidigital number, since it uses as much as digits as its factorization.

12827649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275886.

The product of its digits is 48384, while the sum is 39.

The square root of 12827649 is about 3581.5707447990. The cubic root of 12827649 is about 234.0897274421.

The spelling of 12827649 in words is "twelve million, eight hundred twenty-seven thousand, six hundred forty-nine".