28085064 has 32 divisors (see below), whose sum is σ = 80243520. Its totient is φ = 8024256.

The previous prime is 28085051. The next prime is 28085087. The reversal of 28085064 is 46058082.

It is a super-3 number, since 3×28085064³ (a number of 23 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 83419 + ... + 83754.

It is an arithmetic number, because the mean of its divisors is an integer number (2507610).

Almost surely, 2^28085064 is an apocalyptic number.

28085064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28085064 is an abundant number, since it is smaller than the sum of its proper divisors (52158456).

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

28085064 is a wasteful number, since it uses less digits than its factorization.

28085064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167189 (or 167185 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28085064 is about 5299.5343191643. The cubic root of 28085064 is about 303.9660915550.

The spelling of 28085064 in words is "twenty-eight million, eighty-five thousand, sixty-four".