999080 has 16 divisors (see below), whose sum is σ = 2248020. Its totient is φ = 399616.

The previous prime is 999067. The next prime is 999083. The reversal of 999080 is 80999.

It can be written as a sum of positive squares in 2 ways, for example, as 850084 + 148996 = 922^2 + 386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 999080.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999080.

It is not an unprimeable number, because it can be changed into a prime (999083) 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, 12449 + ... + 12528.

2⁹⁹⁹⁰⁸⁰ is an apocalyptic number.

It is an amenable number.

999080 is an abundant number, since it is smaller than the sum of its proper divisors (1248940).

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

999080 is a wasteful number, since it uses less digits than its factorization.

999080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24988 (or 24984 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 999080 is about 999.5398941513. The cubic root of 999080 is about 99.9693239241.

The spelling of 999080 in words is "nine hundred ninety-nine thousand, eighty".