12828979 has 8 divisors (see below), whose sum is σ = 13229568. Its totient is φ = 12433800.

The previous prime is 12828943. The next prime is 12828983. The reversal of 12828979 is 97982821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12828979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12828989) 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 in 7 ways as a sum of consecutive naturals, for example, 3754 + ... + 6304.

It is an arithmetic number, because the mean of its divisors is an integer number (1653696).

Almost surely, 2^12828979 is an apocalyptic number.

12828979 is a deficient number, since it is larger than the sum of its proper divisors (400589).

12828979 is a wasteful number, since it uses less digits than its factorization.

12828979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705.

The product of its digits is 145152, while the sum is 46.

The square root of 12828979 is about 3581.7564127115. The cubic root of 12828979 is about 234.0978174821.

The spelling of 12828979 in words is "twelve million, eight hundred twenty-eight thousand, nine hundred seventy-nine".