28675628 has 6 divisors (see below), whose sum is σ = 50182356. Its totient is φ = 14337812.

The previous prime is 28675627. The next prime is 28675631. The reversal of 28675628 is 82657682.

It is not an unprimeable number, because it can be changed into a prime (28675627) by changing a digit.

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 as a sum of consecutive naturals, namely, 3584450 + ... + 3584457.

It is an arithmetic number, because the mean of its divisors is an integer number (8363726).

Almost surely, 2^28675628 is an apocalyptic number.

It is an amenable number.

28675628 is a deficient number, since it is larger than the sum of its proper divisors (21506728).

28675628 is a wasteful number, since it uses less digits than its factorization.

28675628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168911 (or 7168909 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 28675628 is about 5354.9629317111. The cubic root of 28675628 is about 306.0818981380.

The spelling of 28675628 in words is "twenty-eight million, six hundred seventy-five thousand, six hundred twenty-eight".