12858479 has 4 divisors (see below), whose sum is σ = 12909960. Its totient is φ = 12807000.

The previous prime is 12858467. The next prime is 12858493. The reversal of 12858479 is 97485821.

12858479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97485821 = 349 ⋅279329.

It is a cyclic number.

It is not a de Polignac number, because 12858479 - 2¹² = 12854383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25364 + ... + 25865.

It is an arithmetic number, because the mean of its divisors is an integer number (3227490).

Almost surely, 2^12858479 is an apocalyptic number.

12858479 is a deficient number, since it is larger than the sum of its proper divisors (51481).

12858479 is an equidigital number, since it uses as much as digits as its factorization.

12858479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51480.

The product of its digits is 161280, while the sum is 44.

The square root of 12858479 is about 3585.8721393826. The cubic root of 12858479 is about 234.2771146563.

The spelling of 12858479 in words is "twelve million, eight hundred fifty-eight thousand, four hundred seventy-nine".