999084799 has 4 divisors (see below), whose sum is σ = 999165960. Its totient is φ = 999003640.

The previous prime is 999084791. The next prime is 999084803. The reversal of 999084799 is 997480999.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 999084799 - 2³ = 999084791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999084799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999084791) 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, 17884 + ... + 48145.

It is an arithmetic number, because the mean of its divisors is an integer number (249791490).

Almost surely, 2^999084799 is an apocalyptic number.

999084799 is a deficient number, since it is larger than the sum of its proper divisors (81161).

999084799 is a wasteful number, since it uses less digits than its factorization.

999084799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81160.

The product of its (nonzero) digits is 13226976, while the sum is 64.

The square root of 999084799 is about 31608.3026909070. The cubic root of 999084799 is about 999.6948398868.

The spelling of 999084799 in words is "nine hundred ninety-nine million, eighty-four thousand, seven hundred ninety-nine".