999343523 has 2 divisors, whose sum is σ = 999343524. Its totient is φ = 999343522.

The previous prime is 999343517. The next prime is 999343549. The reversal of 999343523 is 325343999.

999343523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999343523 is a prime.

It is not a weakly prime, because it can be changed into another prime (999343223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499671761 + 499671762.

It is an arithmetic number, because the mean of its divisors is an integer number (499671762).

Almost surely, 2^999343523 is an apocalyptic number.

999343523 is a deficient number, since it is larger than the sum of its proper divisors (1).

999343523 is an equidigital number, since it uses as much as digits as its factorization.

999343523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 47.

The square root of 999343523 is about 31612.3950848397. The cubic root of 999343523 is about 999.7811264312.

The spelling of 999343523 in words is "nine hundred ninety-nine million, three hundred forty-three thousand, five hundred twenty-three".