999843284 has 12 divisors (see below), whose sum is σ = 1908791808. Its totient is φ = 454474200.

The previous prime is 999843283. The next prime is 999843307. The reversal of 999843284 is 482348999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999843283) 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, 11361812 + ... + 11361899.

It is an arithmetic number, because the mean of its divisors is an integer number (159065984).

Almost surely, 2^999843284 is an apocalyptic number.

It is an amenable number.

999843284 is a deficient number, since it is larger than the sum of its proper divisors (908948524).

999843284 is a wasteful number, since it uses less digits than its factorization.

999843284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22723726 (or 22723724 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 56.

The square root of 999843284 is about 31620.2986070657. The cubic root of 999843284 is about 999.9477586042.

The spelling of 999843284 in words is "nine hundred ninety-nine million, eight hundred forty-three thousand, two hundred eighty-four".