64575071 has 8 divisors (see below), whose sum is σ = 70703184. Its totient is φ = 58489920.

The previous prime is 64575067. The next prime is 64575089. The reversal of 64575071 is 17057546.

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

It is a cyclic number.

It is not a de Polignac number, because 64575071 - 2² = 64575067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64575001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7550 + ... + 13643.

It is an arithmetic number, because the mean of its divisors is an integer number (8837898).

Almost surely, 2^64575071 is an apocalyptic number.

64575071 is a deficient number, since it is larger than the sum of its proper divisors (6128113).

64575071 is a wasteful number, since it uses less digits than its factorization.

64575071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21481.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 64575071 is about 8035.8615592854. The cubic root of 64575071 is about 401.1944939929.

The spelling of 64575071 in words is "sixty-four million, five hundred seventy-five thousand, seventy-one".