28682665 has 8 divisors (see below), whose sum is σ = 37548288. Its totient is φ = 20860080.

The previous prime is 28682623. The next prime is 28682671. The reversal of 28682665 is 56628682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-28682665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260697 + ... + 260806.

It is an arithmetic number, because the mean of its divisors is an integer number (4693536).

Almost surely, 2^28682665 is an apocalyptic number.

It is an amenable number.

28682665 is a deficient number, since it is larger than the sum of its proper divisors (8865623).

28682665 is a wasteful number, since it uses less digits than its factorization.

28682665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521519.

The product of its digits is 276480, while the sum is 43.

The square root of 28682665 is about 5355.6199454405. The cubic root of 28682665 is about 306.1069335926.

The spelling of 28682665 in words is "twenty-eight million, six hundred eighty-two thousand, six hundred sixty-five".