64470017 has 4 divisors (see below), whose sum is σ = 65108436. Its totient is φ = 63831600.

The previous prime is 64469981. The next prime is 64470031. The reversal of 64470017 is 71007446.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39828721 + 24641296 = 6311^2 + 4964^2 .

It is a cyclic number.

It is not a de Polignac number, because 64470017 - 2⁶ = 64469953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64476017) 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, 319058 + ... + 319259.

It is an arithmetic number, because the mean of its divisors is an integer number (16277109).

Almost surely, 2^64470017 is an apocalyptic number.

It is an amenable number.

64470017 is a deficient number, since it is larger than the sum of its proper divisors (638419).

64470017 is a wasteful number, since it uses less digits than its factorization.

64470017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638418.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 64470017 is about 8029.3223250783. The cubic root of 64470017 is about 400.9768147241.

The spelling of 64470017 in words is "sixty-four million, four hundred seventy thousand, seventeen".