28858684 has 6 divisors (see below), whose sum is σ = 50502704. Its totient is φ = 14429340.

The previous prime is 28858651. The next prime is 28858699. The reversal of 28858684 is 48685882.

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 as a sum of consecutive naturals, namely, 3607332 + ... + 3607339.

Almost surely, 2^28858684 is an apocalyptic number.

It is an amenable number.

28858684 is a deficient number, since it is larger than the sum of its proper divisors (21644020).

28858684 is a wasteful number, since it uses less digits than its factorization.

28858684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214675 (or 7214673 counting only the distinct ones).

The product of its digits is 983040, while the sum is 49.

The square root of 28858684 is about 5372.0279224889. The cubic root of 28858684 is about 306.7318266286.

The spelling of 28858684 in words is "twenty-eight million, eight hundred fifty-eight thousand, six hundred eighty-four".