28649008 has 20 divisors (see below), whose sum is σ = 56799688. Its totient is φ = 13991040.

The previous prime is 28648969. The next prime is 28649021. The reversal of 28649008 is 80094682.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 20133 + ... + 21508.

Almost surely, 2^28649008 is an apocalyptic number.

It is an amenable number.

28649008 is a deficient number, since it is larger than the sum of its proper divisors (28150680).

28649008 is a wasteful number, since it uses less digits than its factorization.

28649008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41692 (or 41686 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28649008 is about 5352.4768098517. The cubic root of 28649008 is about 305.9871553980.

It can be divided in two parts, 286 and 49008, that added together give a palindrome (49294).

The spelling of 28649008 in words is "twenty-eight million, six hundred forty-nine thousand, eight".