64005738 has 8 divisors (see below), whose sum is σ = 128011488. Its totient is φ = 21335244.

The previous prime is 64005727. The next prime is 64005779. The reversal of 64005738 is 83750046.

64005738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

64005738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 64005699 and 64005708.

It is an unprimeable number.

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, 5333806 + ... + 5333817.

It is an arithmetic number, because the mean of its divisors is an integer number (16001436).

Almost surely, 2^64005738 is an apocalyptic number.

64005738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64005738 is a wasteful number, since it uses less digits than its factorization.

64005738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667628.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 64005738 is about 8000.3586169621. The cubic root of 64005738 is about 400.0119538094.

The spelling of 64005738 in words is "sixty-four million, five thousand, seven hundred thirty-eight".