73521064 has 16 divisors (see below), whose sum is σ = 143845920. Its totient is φ = 35162160.

The previous prime is 73521037. The next prime is 73521067. The reversal of 73521064 is 46012537.

It is not an unprimeable number, because it can be changed into a prime (73521067) 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, 199602 + ... + 199969.

It is an arithmetic number, because the mean of its divisors is an integer number (8990370).

Almost surely, 2^73521064 is an apocalyptic number.

It is an amenable number.

73521064 is a deficient number, since it is larger than the sum of its proper divisors (70324856).

73521064 is a wasteful number, since it uses less digits than its factorization.

73521064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399600 (or 399596 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 73521064 is about 8574.4424891651. The cubic root of 73521064 is about 418.9259480701.

The spelling of 73521064 in words is "seventy-three million, five hundred twenty-one thousand, sixty-four".