9628643 has 4 divisors (see below), whose sum is σ = 9736920. Its totient is φ = 9520368.

The previous prime is 9628639. The next prime is 9628699. The reversal of 9628643 is 3468269.

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 9628643 - 2² = 9628639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9628597 and 9628606.

It is not an unprimeable number, because it can be changed into a prime (9628343) 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, 54005 + ... + 54182.

It is an arithmetic number, because the mean of its divisors is an integer number (2434230).

Almost surely, 2^9628643 is an apocalyptic number.

9628643 is a deficient number, since it is larger than the sum of its proper divisors (108277).

9628643 is a wasteful number, since it uses less digits than its factorization.

9628643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108276.

The product of its digits is 62208, while the sum is 38.

The square root of 9628643 is about 3103.0054785643. The cubic root of 9628643 is about 212.7428770843.

The spelling of 9628643 in words is "nine million, six hundred twenty-eight thousand, six hundred forty-three".