12456479 has 4 divisors (see below), whose sum is σ = 14235984. Its totient is φ = 10676976.

The previous prime is 12456473. The next prime is 12456487. The reversal of 12456479 is 97465421.

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 12456479 - 2⁴ = 12456463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12456473) 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, 889742 + ... + 889755.

It is an arithmetic number, because the mean of its divisors is an integer number (3558996).

Almost surely, 2^12456479 is an apocalyptic number.

12456479 is a deficient number, since it is larger than the sum of its proper divisors (1779505).

12456479 is an equidigital number, since it uses as much as digits as its factorization.

12456479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779504.

The product of its digits is 60480, while the sum is 38.

The square root of 12456479 is about 3529.3737404814. The cubic root of 12456479 is about 231.8097863701.

The spelling of 12456479 in words is "twelve million, four hundred fifty-six thousand, four hundred seventy-nine".