64005836 has 24 divisors (see below), whose sum is σ = 114378096. Its totient is φ = 31331520.

The previous prime is 64005817. The next prime is 64005839. The reversal of 64005836 is 63850046.

64005836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64005839) 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 7 ways as a sum of consecutive naturals, for example, 67115 + ... + 68061.

It is an arithmetic number, because the mean of its divisors is an integer number (4765754).

Almost surely, 2^64005836 is an apocalyptic number.

It is an amenable number.

64005836 is a deficient number, since it is larger than the sum of its proper divisors (50372260).

64005836 is a wasteful number, since it uses less digits than its factorization.

64005836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64005836 is about 8000.3647416852. The cubic root of 64005836 is about 400.0121579638.

The spelling of 64005836 in words is "sixty-four million, five thousand, eight hundred thirty-six".