28998608 has 20 divisors (see below), whose sum is σ = 58123140. Its totient is φ = 13999104.

The previous prime is 28998581. The next prime is 28998611. The reversal of 28998608 is 80689982.

It can be written as a sum of positive squares in 2 ways, for example, as 12902464 + 16096144 = 3592^2 + 4012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30785 + ... + 31712.

It is an arithmetic number, because the mean of its divisors is an integer number (2906157).

Almost surely, 2^28998608 is an apocalyptic number.

It is an amenable number.

28998608 is an abundant number, since it is smaller than the sum of its proper divisors (29124532).

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

28998608 is a wasteful number, since it uses less digits than its factorization.

28998608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62534 (or 62528 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 28998608 is about 5385.0355616282. The cubic root of 28998608 is about 307.2267667830.

The spelling of 28998608 in words is "twenty-eight million, nine hundred ninety-eight thousand, six hundred eight".