12874661 has 6 divisors (see below), whose sum is σ = 13676850. Its totient is φ = 12117056.

The previous prime is 12874657. The next prime is 12874669. The reversal of 12874661 is 16647821.

12874661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2825761 + 10048900 = 1681^2 + 3170^2 .

It is not a de Polignac number, because 12874661 - 2² = 12874657 is a prime.

It is a Duffinian 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 (12874669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21986 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (2279475).

Almost surely, 2^12874661 is an apocalyptic number.

It is an amenable number.

12874661 is a deficient number, since it is larger than the sum of its proper divisors (802189).

12874661 is an equidigital number, since it uses as much as digits as its factorization.

12874661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44583 (or 44566 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 12874661 is about 3588.1277847925. The cubic root of 12874661 is about 234.3753503047.

The spelling of 12874661 in words is "twelve million, eight hundred seventy-four thousand, six hundred sixty-one".