64185028 has 12 divisors (see below), whose sum is σ = 113078700. Its totient is φ = 31876832.

The previous prime is 64185007. The next prime is 64185029. The reversal of 64185028 is 82058146.

64185028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31899904 + 32285124 = 5648^2 + 5682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64184984 and 64185002.

It is not an unprimeable number, because it can be changed into a prime (64185029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53251 + ... + 54442.

It is an arithmetic number, because the mean of its divisors is an integer number (9423225).

Almost surely, 2^64185028 is an apocalyptic number.

It is an amenable number.

64185028 is a deficient number, since it is larger than the sum of its proper divisors (48893672).

64185028 is a wasteful number, since it uses less digits than its factorization.

64185028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107846 (or 107844 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 64185028 is about 8011.5559038179. Note that the first 3 decimals coincide. The cubic root of 64185028 is about 400.3851041181.

The spelling of 64185028 in words is "sixty-four million, one hundred eighty-five thousand, twenty-eight".