12869664 has 24 divisors (see below), whose sum is σ = 33783120. Its totient is φ = 4289856.

The previous prime is 12869657. The next prime is 12869671. The reversal of 12869664 is 46696821.

It is an interprime number because it is at equal distance from previous prime (12869657) and next prime (12869671).

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66934 + ... + 67125.

It is an arithmetic number, because the mean of its divisors is an integer number (1407630).

Almost surely, 2^12869664 is an apocalyptic number.

It is an amenable number.

12869664 is an abundant number, since it is smaller than the sum of its proper divisors (20913456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12869664 is a wasteful number, since it uses less digits than its factorization.

12869664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134072 (or 134064 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 12869664 is about 3587.4313930722. The cubic root of 12869664 is about 234.3450239352.

The spelling of 12869664 in words is "twelve million, eight hundred sixty-nine thousand, six hundred sixty-four".