8919943 has 8 divisors (see below), whose sum is σ = 9174816. Its totient is φ = 8668800.

The previous prime is 8919941. The next prime is 8919959. The reversal of 8919943 is 3499198.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8919943 - 2¹ = 8919941 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 8919943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8919941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4323 + ... + 6043.

It is an arithmetic number, because the mean of its divisors is an integer number (1146852).

Almost surely, 2^8919943 is an apocalyptic number.

8919943 is a deficient number, since it is larger than the sum of its proper divisors (254873).

8919943 is a wasteful number, since it uses less digits than its factorization.

8919943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865.

The product of its digits is 69984, while the sum is 43.

The square root of 8919943 is about 2986.6273620926. The cubic root of 8919943 is about 207.3897842126.

The spelling of 8919943 in words is "eight million, nine hundred nineteen thousand, nine hundred forty-three".