12954979 has 4 divisors (see below), whose sum is σ = 13636840. Its totient is φ = 12273120.

The previous prime is 12954971. The next prime is 12954989. The reversal of 12954979 is 97945921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97945921 = 389 ⋅251789.

It is a cyclic number.

It is not a de Polignac number, because 12954979 - 2³ = 12954971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12954971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340902 + ... + 340939.

It is an arithmetic number, because the mean of its divisors is an integer number (3409210).

Almost surely, 2^12954979 is an apocalyptic number.

12954979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12954979 is a deficient number, since it is larger than the sum of its proper divisors (681861).

12954979 is an equidigital number, since it uses as much as digits as its factorization.

12954979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681860.

The product of its digits is 204120, while the sum is 46.

The square root of 12954979 is about 3599.3025713324. The cubic root of 12954979 is about 234.8617203691.

The spelling of 12954979 in words is "twelve million, nine hundred fifty-four thousand, nine hundred seventy-nine".