12782479 has 2 divisors, whose sum is σ = 12782480. Its totient is φ = 12782478.

The previous prime is 12782467. The next prime is 12782513. The reversal of 12782479 is 97428721.

12782479 is digitally balanced in base 2, 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 12782479 - 2¹⁷ = 12651407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12782879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6391239 + 6391240.

It is an arithmetic number, because the mean of its divisors is an integer number (6391240).

Almost surely, 2^12782479 is an apocalyptic number.

12782479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12782479 is an equidigital number, since it uses as much as digits as its factorization.

12782479 is an evil number, because the sum of its binary digits is even.

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

The square root of 12782479 is about 3575.2592912962. The cubic root of 12782479 is about 233.8146375812.

The spelling of 12782479 in words is "twelve million, seven hundred eighty-two thousand, four hundred seventy-nine".