999974443 has 4 divisors (see below), whose sum is σ = 1076895568. Its totient is φ = 923053320.

The previous prime is 999974441. The next prime is 999974447. The reversal of 999974443 is 344479999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 999974443 - 2¹ = 999974441 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (999974441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38460543 + ... + 38460568.

It is an arithmetic number, because the mean of its divisors is an integer number (269223892).

Almost surely, 2^999974443 is an apocalyptic number.

999974443 is a deficient number, since it is larger than the sum of its proper divisors (76921125).

999974443 is a wasteful number, since it uses less digits than its factorization.

999974443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76921124.

The product of its digits is 8817984, while the sum is 58.

The square root of 999974443 is about 31622.3725074511. The cubic root of 999974443 is about 999.9914809274.

The spelling of 999974443 in words is "nine hundred ninety-nine million, nine hundred seventy-four thousand, four hundred forty-three".