999923532 has 12 divisors (see below), whose sum is σ = 2333154936. Its totient is φ = 333307840.

The previous prime is 999923531. The next prime is 999923537. The reversal of 999923532 is 235329999.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (999923531) 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, 41663469 + ... + 41663492.

It is an arithmetic number, because the mean of its divisors is an integer number (194429578).

Almost surely, 2^999923532 is an apocalyptic number.

It is an amenable number.

999923532 is an abundant number, since it is smaller than the sum of its proper divisors (1333231404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999923532 is a wasteful number, since it uses less digits than its factorization.

999923532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83326968 (or 83326966 counting only the distinct ones).

The product of its digits is 1180980, while the sum is 51.

The square root of 999923532 is about 31621.5675133286. The cubic root of 999923532 is about 999.9745100169.

The spelling of 999923532 in words is "nine hundred ninety-nine million, nine hundred twenty-three thousand, five hundred thirty-two".