9640217 has 4 divisors (see below), whose sum is σ = 9845376. Its totient is φ = 9435060.

The previous prime is 9640199. The next prime is 9640219. The reversal of 9640217 is 7120469.

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.

It is a cyclic number.

It is not a de Polignac number, because 9640217 - 2¹⁴ = 9623833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9640217.

It is not an unprimeable number, because it can be changed into a prime (9640219) 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, 102509 + ... + 102602.

It is an arithmetic number, because the mean of its divisors is an integer number (2461344).

Almost surely, 2^9640217 is an apocalyptic number.

It is an amenable number.

9640217 is a deficient number, since it is larger than the sum of its proper divisors (205159).

9640217 is a wasteful number, since it uses less digits than its factorization.

9640217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205158.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 9640217 is about 3104.8698845523. The cubic root of 9640217 is about 212.8280846651.

The spelling of 9640217 in words is "nine million, six hundred forty thousand, two hundred seventeen".