28839080 has 32 divisors (see below), whose sum is σ = 65232000. Its totient is φ = 11474496.

The previous prime is 28839071. The next prime is 28839103. The reversal of 28839080 is 8093882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6149 + ... + 9771.

It is an arithmetic number, because the mean of its divisors is an integer number (2038500).

Almost surely, 2^28839080 is an apocalyptic number.

28839080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28839080 is an abundant number, since it is smaller than the sum of its proper divisors (36392920).

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

28839080 is a wasteful number, since it uses less digits than its factorization.

28839080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833 (or 3829 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 28839080 is about 5370.2029756798. The cubic root of 28839080 is about 306.6623555370.

The spelling of 28839080 in words is "twenty-eight million, eight hundred thirty-nine thousand, eighty".