28353668 has 12 divisors (see below), whose sum is σ = 56707392. Its totient is φ = 12151560.

The previous prime is 28353667. The next prime is 28353697. The reversal of 28353668 is 86635382.

28353668 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28353667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506288 + ... + 506343.

It is an arithmetic number, because the mean of its divisors is an integer number (4725616).

Almost surely, 2^28353668 is an apocalyptic number.

28353668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28353668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28353668 is a wasteful number, since it uses less digits than its factorization.

28353668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012642 (or 1012640 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28353668 is about 5324.8162409608. The cubic root of 28353668 is about 304.9320568895.

The spelling of 28353668 in words is "twenty-eight million, three hundred fifty-three thousand, six hundred sixty-eight".