12976427 has 4 divisors (see below), whose sum is σ = 13423920. Its totient is φ = 12528936.

The previous prime is 12976417. The next prime is 12976451. The reversal of 12976427 is 72467921.

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

It is a cyclic number.

It is not a de Polignac number, because 12976427 - 2¹² = 12972331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12976417) 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, 223703 + ... + 223760.

It is an arithmetic number, because the mean of its divisors is an integer number (3355980).

Almost surely, 2^12976427 is an apocalyptic number.

12976427 is a deficient number, since it is larger than the sum of its proper divisors (447493).

12976427 is an equidigital number, since it uses as much as digits as its factorization.

12976427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447492.

The product of its digits is 42336, while the sum is 38.

The square root of 12976427 is about 3602.2808052677. The cubic root of 12976427 is about 234.9912596719.

The spelling of 12976427 in words is "twelve million, nine hundred seventy-six thousand, four hundred twenty-seven".