64475171 has 4 divisors (see below), whose sum is σ = 65383344. Its totient is φ = 63567000.

The previous prime is 64475153. The next prime is 64475209. The reversal of 64475171 is 17157446.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64475171 - 2¹⁰ = 64474147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64472171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453980 + ... + 454121.

It is an arithmetic number, because the mean of its divisors is an integer number (16345836).

Almost surely, 2^64475171 is an apocalyptic number.

64475171 is a deficient number, since it is larger than the sum of its proper divisors (908173).

64475171 is an equidigital number, since it uses as much as digits as its factorization.

64475171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908172.

The product of its digits is 23520, while the sum is 35.

The square root of 64475171 is about 8029.6432672940. The cubic root of 64475171 is about 400.9874996881.

It can be divided in two parts, 64475 and 171, that added together give a palindrome (64646).

The spelling of 64475171 in words is "sixty-four million, four hundred seventy-five thousand, one hundred seventy-one".