999489527 has 2 divisors, whose sum is σ = 999489528. Its totient is φ = 999489526.

The previous prime is 999489503. The next prime is 999489571. The reversal of 999489527 is 725984999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999489527 - 2¹⁴ = 999473143 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999489527.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999489427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499744763 + 499744764.

It is an arithmetic number, because the mean of its divisors is an integer number (499744764).

Almost surely, 2^999489527 is an apocalyptic number.

999489527 is a deficient number, since it is larger than the sum of its proper divisors (1).

999489527 is an equidigital number, since it uses as much as digits as its factorization.

999489527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 62.

The square root of 999489527 is about 31614.7042845572. The cubic root of 999489527 is about 999.8298133715.

The spelling of 999489527 in words is "nine hundred ninety-nine million, four hundred eighty-nine thousand, five hundred twenty-seven".