12860858 has 4 divisors (see below), whose sum is σ = 19291290. Its totient is φ = 6430428.

The previous prime is 12860843. The next prime is 12860873. The reversal of 12860858 is 85806821.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12860843) and next prime (12860873).

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 1075369 = 3433^2 + 1037^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3215213 + ... + 3215216.

Almost surely, 2^12860858 is an apocalyptic number.

12860858 is a deficient number, since it is larger than the sum of its proper divisors (6430432).

12860858 is an equidigital number, since it uses as much as digits as its factorization.

12860858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430431.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 12860858 is about 3586.2038425053. The cubic root of 12860858 is about 234.2915619557.

The spelling of 12860858 in words is "twelve million, eight hundred sixty thousand, eight hundred fifty-eight".