999453443 has 4 divisors (see below), whose sum is σ = 1058244840. Its totient is φ = 940662048.

The previous prime is 999453401. The next prime is 999453457. The reversal of 999453443 is 344354999.

999453443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999453443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999453391 and 999453400.

It is not an unprimeable number, because it can be changed into a prime (999453743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29395673 + ... + 29395706.

It is an arithmetic number, because the mean of its divisors is an integer number (264561210).

Almost surely, 2^999453443 is an apocalyptic number.

999453443 is a deficient number, since it is larger than the sum of its proper divisors (58791397).

999453443 is a wasteful number, since it uses less digits than its factorization.

999453443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58791396.

The product of its digits is 2099520, while the sum is 50.

The square root of 999453443 is about 31614.1335955930. The cubic root of 999453443 is about 999.8177811316.

The spelling of 999453443 in words is "nine hundred ninety-nine million, four hundred fifty-three thousand, four hundred forty-three".