64004534 has 16 divisors (see below), whose sum is σ = 104939280. Its totient is φ = 29036160.

The previous prime is 64004533. The next prime is 64004543. The reversal of 64004534 is 43540046.

64004534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64004533) 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, 9962 + ... + 15074.

It is an arithmetic number, because the mean of its divisors is an integer number (6558705).

Almost surely, 2^64004534 is an apocalyptic number.

64004534 is a deficient number, since it is larger than the sum of its proper divisors (40934746).

64004534 is a wasteful number, since it uses less digits than its factorization.

64004534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64004534 is about 8000.2833699813. The cubic root of 64004534 is about 400.0094456103.

The spelling of 64004534 in words is "sixty-four million, four thousand, five hundred thirty-four".