8942643 has 36 divisors (see below), whose sum is σ = 14171040. Its totient is φ = 5633712.

The previous prime is 8942623. The next prime is 8942651. The reversal of 8942643 is 3462498.

It is a happy number.

8942643 is a `hidden beast` number, since 8 + 9 + 4 + 2 + 643 = 666.

It is not a de Polignac number, because 8942643 - 2⁵ = 8942611 is a prime.

It is an Ulam number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 8942598 and 8942607.

It is not an unprimeable number, because it can be changed into a prime (8942623) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190246 + ... + 190292.

It is an arithmetic number, because the mean of its divisors is an integer number (393640).

Almost surely, 2^8942643 is an apocalyptic number.

8942643 is a deficient number, since it is larger than the sum of its proper divisors (5228397).

8942643 is an frugal number, since it uses more digits than its factorization.

8942643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 79 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 8942643 is about 2990.4252205999. The cubic root of 8942643 is about 207.5655611288.

The spelling of 8942643 in words is "eight million, nine hundred forty-two thousand, six hundred forty-three".