9648643 has 4 divisors (see below), whose sum is σ = 9661960. Its totient is φ = 9635328.

The previous prime is 9648607. The next prime is 9648659. The reversal of 9648643 is 3468469.

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 9648643 - 2²¹ = 7551491 is a prime.

It is a Duffinian number.

9648643 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9648596 and 9648605.

It is not an unprimeable number, because it can be changed into a prime (9648343) 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, 5505 + ... + 7042.

It is an arithmetic number, because the mean of its divisors is an integer number (2415490).

Almost surely, 2^9648643 is an apocalyptic number.

9648643 is a deficient number, since it is larger than the sum of its proper divisors (13317).

9648643 is a wasteful number, since it uses less digits than its factorization.

9648643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13316.

The product of its digits is 124416, while the sum is 40.

The square root of 9648643 is about 3106.2264888446. The cubic root of 9648643 is about 212.8900738375.

The spelling of 9648643 in words is "nine million, six hundred forty-eight thousand, six hundred forty-three".