12644086 has 16 divisors (see below), whose sum is σ = 23343264. Its totient is φ = 5001984.

The previous prime is 12644077. The next prime is 12644119. The reversal of 12644086 is 68044621.

12644086 = T₄₈₁ + T₄₈₂ + ... + T₅₇₁.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34555 + ... + 34918.

It is an arithmetic number, because the mean of its divisors is an integer number (1458954).

Almost surely, 2^12644086 is an apocalyptic number.

12644086 is a deficient number, since it is larger than the sum of its proper divisors (10699178).

12644086 is a wasteful number, since it uses less digits than its factorization.

12644086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69495.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 12644086 is about 3555.8523591398. The cubic root of 12644086 is about 232.9677545066.

The spelling of 12644086 in words is "twelve million, six hundred forty-four thousand, eighty-six".