12646067 has 20 divisors (see below), whose sum is σ = 15461520. Its totient is φ = 10322928.

The previous prime is 12646057. The next prime is 12646087. The reversal of 12646067 is 76064621.

It is not a de Polignac number, because 12646067 - 2⁶ = 12646003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12646057) by changing a digit.

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 in 19 ways as a sum of consecutive naturals, for example, 55109 + ... + 55337.

It is an arithmetic number, because the mean of its divisors is an integer number (773076).

Almost surely, 2^12646067 is an apocalyptic number.

12646067 is a deficient number, since it is larger than the sum of its proper divisors (2815453).

12646067 is an frugal number, since it uses more digits than its factorization.

12646067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 12646067 is about 3556.1309031024. The cubic root of 12646067 is about 232.9799205375.

The spelling of 12646067 in words is "twelve million, six hundred forty-six thousand, sixty-seven".