12664029 has 16 divisors (see below), whose sum is σ = 19499648. Its totient is φ = 7160832.

The previous prime is 12664021. The next prime is 12664033. The reversal of 12664029 is 92046621.

It is not a de Polignac number, because 12664029 - 2³ = 12664021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12663987 and 12664005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664021) 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 15 ways as a sum of consecutive naturals, for example, 1072 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (1218728).

Almost surely, 2^12664029 is an apocalyptic number.

It is an amenable number.

12664029 is a deficient number, since it is larger than the sum of its proper divisors (6835619).

12664029 is an equidigital number, since it uses as much as digits as its factorization.

12664029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12664029 is about 3558.6555045410. The cubic root of 12664029 is about 233.0901736723.

The spelling of 12664029 in words is "twelve million, six hundred sixty-four thousand, twenty-nine".