12979771 has 8 divisors (see below), whose sum is σ = 14865120. Its totient is φ = 11102208.

The previous prime is 12979727. The next prime is 12979777. The reversal of 12979771 is 17797921.

12979771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12979771 - 2⁷ = 12979643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12979777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2235 + ... + 5563.

It is an arithmetic number, because the mean of its divisors is an integer number (1858140).

Almost surely, 2^12979771 is an apocalyptic number.

12979771 is a deficient number, since it is larger than the sum of its proper divisors (1885349).

12979771 is an equidigital number, since it uses as much as digits as its factorization.

12979771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893.

The product of its digits is 55566, while the sum is 43.

The square root of 12979771 is about 3602.7449257476. The cubic root of 12979771 is about 235.0114435351.

The spelling of 12979771 in words is "twelve million, nine hundred seventy-nine thousand, seven hundred seventy-one".