28384688 has 10 divisors (see below), whose sum is σ = 54995364. Its totient is φ = 14192336.

The previous prime is 28384673. The next prime is 28384693. The reversal of 28384688 is 88648382.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 887006 + ... + 887037.

Almost surely, 2^28384688 is an apocalyptic number.

It is an amenable number.

28384688 is a deficient number, since it is larger than the sum of its proper divisors (26610676).

28384688 is a wasteful number, since it uses less digits than its factorization.

28384688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774051 (or 1774045 counting only the distinct ones).

The product of its digits is 589824, while the sum is 47.

The square root of 28384688 is about 5327.7282212966. The cubic root of 28384688 is about 305.0432188151.

The spelling of 28384688 in words is "twenty-eight million, three hundred eighty-four thousand, six hundred eighty-eight".