28093308 has 24 divisors (see below), whose sum is σ = 65727312. Its totient is φ = 9339264.

The previous prime is 28093291. The next prime is 28093309. The reversal of 28093308 is 80339082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28093309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1816 + ... + 7712.

It is an arithmetic number, because the mean of its divisors is an integer number (2738638).

Almost surely, 2^28093308 is an apocalyptic number.

It is an amenable number.

28093308 is an abundant number, since it is smaller than the sum of its proper divisors (37634004).

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

28093308 is a wasteful number, since it uses less digits than its factorization.

28093308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301 (or 6299 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28093308 is about 5300.3120662844. The cubic root of 28093308 is about 303.9958303906.

The spelling of 28093308 in words is "twenty-eight million, ninety-three thousand, three hundred eight".