12869670 has 64 divisors (see below), whose sum is σ = 34318080. Its totient is φ = 3062400.

The previous prime is 12869657. The next prime is 12869671. The reversal of 12869670 is 7696821.

Added to its reverse (7696821) it gives a triangular number (20566491 = T₆₄₁₃).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12869671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19140 + ... + 19800.

It is an arithmetic number, because the mean of its divisors is an integer number (536220).

Almost surely, 2^12869670 is an apocalyptic number.

12869670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12869670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17159040).

12869670 is an abundant number, since it is smaller than the sum of its proper divisors (21448410).

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

12869670 is a wasteful number, since it uses less digits than its factorization.

12869670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 12869670 is about 3587.4322293250. The cubic root of 12869670 is about 234.3450603534.

Adding to 12869670 its reverse (7696821), we get a triangular number (20566491 = T₆₄₁₃).

The spelling of 12869670 in words is "twelve million, eight hundred sixty-nine thousand, six hundred seventy".