8126643 has 16 divisors (see below), whose sum is σ = 12719360. Its totient is φ = 4517856.

The previous prime is 8126617. The next prime is 8126647. The reversal of 8126643 is 3466218.

It is not a de Polignac number, because 8126643 - 2¹⁶ = 8061107 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 8126643.

It is not an unprimeable number, because it can be changed into a prime (8126647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4453 + ... + 6006.

It is an arithmetic number, because the mean of its divisors is an integer number (794960).

Almost surely, 2^8126643 is an apocalyptic number.

8126643 is a deficient number, since it is larger than the sum of its proper divisors (4592717).

8126643 is a wasteful number, since it uses less digits than its factorization.

8126643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10506.

The product of its digits is 6912, while the sum is 30.

The square root of 8126643 is about 2850.7267494448. The cubic root of 8126643 is about 201.0498378929.

The spelling of 8126643 in words is "eight million, one hundred twenty-six thousand, six hundred forty-three".