28467685 has 12 divisors (see below), whose sum is σ = 34529868. Its totient is φ = 22530816.

The previous prime is 28467631. The next prime is 28467701. The reversal of 28467685 is 58676482.

It can be written as a sum of positive squares in 2 ways, for example, as 10903204 + 17564481 = 3302^2 + 4191^2 .

It is not a de Polignac number, because 28467685 - 2¹⁹ = 27943397 is a prime.

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80469 + ... + 80821.

It is an arithmetic number, because the mean of its divisors is an integer number (2877489).

Almost surely, 2^28467685 is an apocalyptic number.

It is an amenable number.

28467685 is a deficient number, since it is larger than the sum of its proper divisors (6062183).

28467685 is an equidigital number, since it uses as much as digits as its factorization.

28467685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 485 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 28467685 is about 5335.5116905504. The cubic root of 28467685 is about 305.3402455747.

The spelling of 28467685 in words is "twenty-eight million, four hundred sixty-seven thousand, six hundred eighty-five".