999899068 has 48 divisors (see below), whose sum is σ = 2046744000. Its totient is φ = 418567680.

The previous prime is 999899053. The next prime is 999899077. The reversal of 999899068 is 860998999.

It is a junction number, because it is equal to n+sod(n) for n = 999898994 and 999899012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252528 + ... + 256456.

It is an arithmetic number, because the mean of its divisors is an integer number (42640500).

Almost surely, 2^999899068 is an apocalyptic number.

It is an amenable number.

999899068 is an abundant number, since it is smaller than the sum of its proper divisors (1046844932).

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

999899068 is a wasteful number, since it uses less digits than its factorization.

999899068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 67.

The square root of 999899068 is about 31621.1806863691. The cubic root of 999899068 is about 999.9663548680.

The spelling of 999899068 in words is "nine hundred ninety-nine million, eight hundred ninety-nine thousand, sixty-eight".