12670861 has 12 divisors (see below), whose sum is σ = 15381792. Its totient is φ = 10387608.

The previous prime is 12670849. The next prime is 12670877. The reversal of 12670861 is 16807621.

12670861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12670861 - 2⁷ = 12670733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12670061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4495 + ... + 6748.

It is an arithmetic number, because the mean of its divisors is an integer number (1281816).

Almost surely, 2^12670861 is an apocalyptic number.

It is an amenable number.

12670861 is a deficient number, since it is larger than the sum of its proper divisors (2710931).

12670861 is a wasteful number, since it uses less digits than its factorization.

12670861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280 (or 11273 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12670861 is about 3559.6152882018. The cubic root of 12670861 is about 233.1320820251.

It can be divided in two parts, 12670 and 861, that added together give a palindrome (13531).

The spelling of 12670861 in words is "twelve million, six hundred seventy thousand, eight hundred sixty-one".