8219943 has 6 divisors (see below), whose sum is σ = 11873264. Its totient is φ = 5479956.

The previous prime is 8219941. The next prime is 8219969. The reversal of 8219943 is 3499128.

It is not a de Polignac number, because 8219943 - 2¹ = 8219941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8219898 and 8219907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8219941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456655 + ... + 456672.

Almost surely, 2^8219943 is an apocalyptic number.

8219943 is a deficient number, since it is larger than the sum of its proper divisors (3653321).

8219943 is a wasteful number, since it uses less digits than its factorization.

8219943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913333 (or 913330 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 8219943 is about 2867.0442968325. The cubic root of 8219943 is about 201.8163134276.

The spelling of 8219943 in words is "eight million, two hundred nineteen thousand, nine hundred forty-three".