999829874 has 16 divisors (see below), whose sum is σ = 1589124096. Its totient is φ = 470164800.

The previous prime is 999829867. The next prime is 999829879. The reversal of 999829874 is 478928999.

999829874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 999829874.

It is not an unprimeable number, because it can be changed into a prime (999829879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40019 + ... + 60009.

It is an arithmetic number, because the mean of its divisors is an integer number (99320256).

Almost surely, 2^999829874 is an apocalyptic number.

999829874 is a deficient number, since it is larger than the sum of its proper divisors (589294222).

999829874 is a wasteful number, since it uses less digits than its factorization.

999829874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21481.

The product of its digits is 23514624, while the sum is 65.

The square root of 999829874 is about 31620.0865590213. The cubic root of 999829874 is about 999.9432881172.

The spelling of 999829874 in words is "nine hundred ninety-nine million, eight hundred twenty-nine thousand, eight hundred seventy-four".