28263008 has 24 divisors (see below), whose sum is σ = 56558880. Its totient is φ = 13898880.

The previous prime is 28262989. The next prime is 28263017. The reversal of 28263008 is 80036282.

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, 5288 + ... + 9191.

It is an arithmetic number, because the mean of its divisors is an integer number (2356620).

Almost surely, 2^28263008 is an apocalyptic number.

It is an amenable number.

28263008 is an abundant number, since it is smaller than the sum of its proper divisors (28295872).

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

28263008 is a wasteful number, since it uses less digits than its factorization.

28263008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550 (or 14542 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 28263008 is about 5316.2964552402. The cubic root of 28263008 is about 304.6067061851.

The spelling of 28263008 in words is "twenty-eight million, two hundred sixty-three thousand, eight".