12764661 has 16 divisors (see below), whose sum is σ = 20947584. Its totient is φ = 6732864.

The previous prime is 12764659. The next prime is 12764699. The reversal of 12764661 is 16646721.

It is not a de Polignac number, because 12764661 - 2¹ = 12764659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12764651) 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, 23106 + ... + 23651.

It is an arithmetic number, because the mean of its divisors is an integer number (1309224).

Almost surely, 2^12764661 is an apocalyptic number.

It is an amenable number.

12764661 is a deficient number, since it is larger than the sum of its proper divisors (8182923).

12764661 is a wasteful number, since it uses less digits than its factorization.

12764661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46780.

The product of its digits is 12096, while the sum is 33.

The square root of 12764661 is about 3572.7665750788. The cubic root of 12764661 is about 233.7059459239.

The spelling of 12764661 in words is "twelve million, seven hundred sixty-four thousand, six hundred sixty-one".