999016 has 16 divisors (see below), whose sum is σ = 1887840. Its totient is φ = 495600.

The previous prime is 999007. The next prime is 999023. The reversal of 999016 is 610999.

It is a happy number.

It is an unprimeable number.

999016 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 3 ways as a sum of consecutive naturals, for example, 795 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (117990).

2⁹⁹⁹⁰¹⁶ is an apocalyptic number.

It is an amenable number.

999016 is a deficient number, since it is larger than the sum of its proper divisors (888824).

999016 is a wasteful number, since it uses less digits than its factorization.

999016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 999016 is about 999.5078789084. The cubic root of 999016 is about 99.9671892357.

The spelling of 999016 in words is "nine hundred ninety-nine thousand, sixteen".