999988532 has 12 divisors (see below), whose sum is σ = 1758775200. Its totient is φ = 497481336.

The previous prime is 999988523. The next prime is 999988541. The reversal of 999988532 is 235889999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (999988523) and next prime (999988541).

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

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, 627338 + ... + 628929.

It is an arithmetic number, because the mean of its divisors is an integer number (146564600).

Almost surely, 2^999988532 is an apocalyptic number.

It is an amenable number.

999988532 is a deficient number, since it is larger than the sum of its proper divisors (758786668).

999988532 is a wasteful number, since it uses less digits than its factorization.

999988532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256470 (or 1256468 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 62.

The square root of 999988532 is about 31622.5952761629. The cubic root of 999988532 is about 999.9961773187.

The spelling of 999988532 in words is "nine hundred ninety-nine million, nine hundred eighty-eight thousand, five hundred thirty-two".