999690234 has 8 divisors (see below), whose sum is σ = 1999380480. Its totient is φ = 333230076.

The previous prime is 999690203. The next prime is 999690257. The reversal of 999690234 is 432096999.

It is a sphenic number, since it is the product of 3 distinct primes.

999690234 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83307514 + ... + 83307525.

It is an arithmetic number, because the mean of its divisors is an integer number (249922560).

Almost surely, 2^999690234 is an apocalyptic number.

999690234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

999690234 is a wasteful number, since it uses less digits than its factorization.

999690234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166615044.

The product of its (nonzero) digits is 944784, while the sum is 51.

The square root of 999690234 is about 31617.8783918213. The cubic root of 999690234 is about 999.8967340032.

The spelling of 999690234 in words is "nine hundred ninety-nine million, six hundred ninety thousand, two hundred thirty-four".