999792 has 60 divisors (see below), whose sum is σ = 2872584. Its totient is φ = 324480.

The previous prime is 999773. The next prime is 999809. The reversal of 999792 is 297999.

Its product of digits (91854) is a multiple of the sum of its prime divisors (189).

It is a congruent number.

It is an unprimeable number.

999792 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7567 + ... + 7697.

2⁹⁹⁹⁷⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436292).

999792 is an abundant number, since it is smaller than the sum of its proper divisors (1872792).

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

999792 is a wasteful number, since it uses less digits than its factorization.

999792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 189 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 999792 is about 999.8959945914. The cubic root of 999792 is about 99.9930661859.

The spelling of 999792 in words is "nine hundred ninety-nine thousand, seven hundred ninety-two".