28650008 has 8 divisors (see below), whose sum is σ = 53718780. Its totient is φ = 14325000.

The previous prime is 28650007. The next prime is 28650047. The reversal of 28650008 is 80005682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650001) by changing a digit.

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, 1790618 + ... + 1790633.

Almost surely, 2^28650008 is an apocalyptic number.

It is an amenable number.

28650008 is a deficient number, since it is larger than the sum of its proper divisors (25068772).

28650008 is a wasteful number, since it uses less digits than its factorization.

28650008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581257 (or 3581253 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28650008 is about 5352.5702237336. The cubic root of 28650008 is about 305.9907155398.

The spelling of 28650008 in words is "twenty-eight million, six hundred fifty thousand, eight".