12855567 has 8 divisors (see below), whose sum is σ = 17422000. Its totient is φ = 8429760.

The previous prime is 12855529. The next prime is 12855589. The reversal of 12855567 is 76555821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12855567 - 2⁶ = 12855503 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 (12855527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34942 + ... + 35307.

It is an arithmetic number, because the mean of its divisors is an integer number (2177750).

Almost surely, 2^12855567 is an apocalyptic number.

12855567 is a deficient number, since it is larger than the sum of its proper divisors (4566433).

12855567 is an equidigital number, since it uses as much as digits as its factorization.

12855567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70313.

The product of its digits is 84000, while the sum is 39.

The square root of 12855567 is about 3585.4660784897. The cubic root of 12855567 is about 234.2594281045.

The spelling of 12855567 in words is "twelve million, eight hundred fifty-five thousand, five hundred sixty-seven".