28561682 has 6 divisors (see below), whose sum is σ = 42853863. Its totient is φ = 14277062.

The previous prime is 28561679. The next prime is 28561691. The reversal of 28561682 is 28616582.

It can be written as a sum of positive squares in only one way, i.e., 14280841 + 14280841 = 3779^2 + 3779^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3779.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5669 + ... + 9447.

Almost surely, 2^28561682 is an apocalyptic number.

28561682 is a deficient number, since it is larger than the sum of its proper divisors (14292181).

28561682 is an frugal number, since it uses more digits than its factorization.

28561682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7560 (or 3781 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 28561682 is about 5344.3130522079. The cubic root of 28561682 is about 305.6759424146.

The spelling of 28561682 in words is "twenty-eight million, five hundred sixty-one thousand, six hundred eighty-two".