999752992 has 48 divisors (see below), whose sum is σ = 2291913792. Its totient is φ = 420376320.

The previous prime is 999752981. The next prime is 999753043. The reversal of 999752992 is 299257999.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 999752992.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30234 + ... + 53977.

It is an arithmetic number, because the mean of its divisors is an integer number (47748204).

Almost surely, 2^999752992 is an apocalyptic number.

It is an amenable number.

999752992 is an abundant number, since it is smaller than the sum of its proper divisors (1292160800).

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

999752992 is a wasteful number, since it uses less digits than its factorization.

999752992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84281 (or 84273 counting only the distinct ones).

The product of its digits is 8266860, while the sum is 61.

The square root of 999752992 is about 31618.8708210777. The cubic root of 999752992 is about 999.9176572199.

The spelling of 999752992 in words is "nine hundred ninety-nine million, seven hundred fifty-two thousand, nine hundred ninety-two".