12670644 has 96 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 3220992.

The previous prime is 12670639. The next prime is 12670649. The reversal of 12670644 is 44607621.

It is an interprime number because it is at equal distance from previous prime (12670639) and next prime (12670649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12670649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26899 + ... + 27365.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^12670644 is an apocalyptic number.

12670644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12670644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869760).

12670644 is an abundant number, since it is smaller than the sum of its proper divisors (25068876).

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

12670644 is a wasteful number, since it uses less digits than its factorization.

12670644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 12670644 is about 3559.5848072493. The cubic root of 12670644 is about 233.1307511513.

The spelling of 12670644 in words is "twelve million, six hundred seventy thousand, six hundred forty-four".