999070998 has 8 divisors (see below), whose sum is σ = 1998142008. Its totient is φ = 333023664.

The previous prime is 999070991. The next prime is 999070999. The reversal of 999070998 is 899070999.

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

999070998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999070991) 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, 83255911 + ... + 83255922.

It is an arithmetic number, because the mean of its divisors is an integer number (249767751).

Almost surely, 2^999070998 is an apocalyptic number.

999070998 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.

999070998 is a wasteful number, since it uses less digits than its factorization.

999070998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166511838.

The product of its (nonzero) digits is 3306744, while the sum is 60.

The square root of 999070998 is about 31608.0843772602. The cubic root of 999070998 is about 999.6902367233.

Subtracting from 999070998 its reverse (899070999), we obtain a palindrome (99999999).

The spelling of 999070998 in words is "nine hundred ninety-nine million, seventy thousand, nine hundred ninety-eight".