28383664 has 10 divisors (see below), whose sum is σ = 54993380. Its totient is φ = 14191824.

The previous prime is 28383647. The next prime is 28383683. The reversal of 28383664 is 46638382.

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 as a sum of consecutive naturals, namely, 886974 + ... + 887005.

It is an arithmetic number, because the mean of its divisors is an integer number (5499338).

Almost surely, 2^28383664 is an apocalyptic number.

It is an amenable number.

28383664 is a deficient number, since it is larger than the sum of its proper divisors (26609716).

28383664 is a wasteful number, since it uses less digits than its factorization.

28383664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773987 (or 1773981 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 28383664 is about 5327.6321194317. The cubic root of 28383664 is about 305.0395505461.

The spelling of 28383664 in words is "twenty-eight million, three hundred eighty-three thousand, six hundred sixty-four".