8546643 has 12 divisors (see below), whose sum is σ = 14108848. Its totient is φ = 4883760.

The previous prime is 8546633. The next prime is 8546647. The reversal of 8546643 is 3466458.

8546643 is a `hidden beast` number, since 8 + 5 + 4 + 6 + 643 = 666.

It is not a de Polignac number, because 8546643 - 2⁴ = 8546627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8546598 and 8546607.

It is not an unprimeable number, because it can be changed into a prime (8546647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67768 + ... + 67893.

Almost surely, 2^8546643 is an apocalyptic number.

8546643 is a deficient number, since it is larger than the sum of its proper divisors (5562205).

8546643 is a wasteful number, since it uses less digits than its factorization.

8546643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135674 (or 135671 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 8546643 is about 2923.4642121976. The cubic root of 8546643 is about 204.4553697318.

The spelling of 8546643 in words is "eight million, five hundred forty-six thousand, six hundred forty-three".