64005538 has 8 divisors (see below), whose sum is σ = 96286032. Its totient is φ = 31910196.

The previous prime is 64005499. The next prime is 64005541. The reversal of 64005538 is 83550046.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45420 + ... + 46807.

It is an arithmetic number, because the mean of its divisors is an integer number (12035754).

Almost surely, 2^64005538 is an apocalyptic number.

64005538 is a deficient number, since it is larger than the sum of its proper divisors (32280494).

64005538 is a wasteful number, since it uses less digits than its factorization.

64005538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92576.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 64005538 is about 8000.3461175127. The cubic root of 64005538 is about 400.0115371672.

The spelling of 64005538 in words is "sixty-four million, five thousand, five hundred thirty-eight".