28677384 has 48 divisors (see below), whose sum is σ = 81759600. Its totient is φ = 9055584.

The previous prime is 28677353. The next prime is 28677437. The reversal of 28677384 is 48377682.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9114 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (1703325).

Almost surely, 2^28677384 is an apocalyptic number.

28677384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28677384 is an abundant number, since it is smaller than the sum of its proper divisors (53082216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28677384 is a wasteful number, since it uses less digits than its factorization.

28677384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20994 (or 20987 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 28677384 is about 5355.1268892530. The cubic root of 28677384 is about 306.0881458226.

The spelling of 28677384 in words is "twenty-eight million, six hundred seventy-seven thousand, three hundred eighty-four".