12287479 has 2 divisors, whose sum is σ = 12287480. Its totient is φ = 12287478.

The previous prime is 12287477. The next prime is 12287489. The reversal of 12287479 is 97478221.

12287479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12287479 - 2¹ = 12287477 is a prime.

Together with 12287477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12287477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6143739 + 6143740.

It is an arithmetic number, because the mean of its divisors is an integer number (6143740).

Almost surely, 2^12287479 is an apocalyptic number.

12287479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12287479 is an equidigital number, since it uses as much as digits as its factorization.

12287479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 12287479 is about 3505.3500538463. The cubic root of 12287479 is about 230.7566698662.

The spelling of 12287479 in words is "twelve million, two hundred eighty-seven thousand, four hundred seventy-nine".