64475017 has 4 divisors (see below), whose sum is σ = 65974480. Its totient is φ = 62975556.

The previous prime is 64474997. The next prime is 64475039. The reversal of 64475017 is 71057446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71057446 = 2 ⋅35528723.

It is a cyclic number.

It is not a de Polignac number, because 64475017 - 2⁷ = 64474889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64475087) 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 3 ways as a sum of consecutive naturals, for example, 749667 + ... + 749752.

It is an arithmetic number, because the mean of its divisors is an integer number (16493620).

Almost surely, 2^64475017 is an apocalyptic number.

It is an amenable number.

64475017 is a deficient number, since it is larger than the sum of its proper divisors (1499463).

64475017 is a wasteful number, since it uses less digits than its factorization.

64475017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499462.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 64475017 is about 8029.6336778212. The cubic root of 64475017 is about 400.9871804327.

The spelling of 64475017 in words is "sixty-four million, four hundred seventy-five thousand, seventeen".