12872485 has 16 divisors (see below), whose sum is σ = 16801776. Its totient is φ = 9427968.

The previous prime is 12872473. The next prime is 12872507. The reversal of 12872485 is 58427821.

It can be written as a sum of positive squares in 8 ways, for example, as 859329 + 12013156 = 927^2 + 3466^2 .

It is a cyclic number.

It is not a de Polignac number, because 12872485 - 2⁷ = 12872357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1099 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (1050111).

Almost surely, 2^12872485 is an apocalyptic number.

It is an amenable number.

12872485 is a deficient number, since it is larger than the sum of its proper divisors (3929291).

12872485 is a wasteful number, since it uses less digits than its factorization.

12872485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152.

The product of its digits is 35840, while the sum is 37.

The square root of 12872485 is about 3587.8245497794. The cubic root of 12872485 is about 234.3621453098.

The spelling of 12872485 in words is "twelve million, eight hundred seventy-two thousand, four hundred eighty-five".