968899999 has 4 divisors (see below), whose sum is σ = 968966064. Its totient is φ = 968833936.

The previous prime is 968899991. The next prime is 968900011. The reversal of 968899999 is 999998869.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 968899999 - 2³ = 968899991 is a prime.

It is a Duffinian number.

968899999 is a modest number, since divided by 99999 gives 9688 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968899991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67 + ... + 44020.

It is an arithmetic number, because the mean of its divisors is an integer number (242241516).

Almost surely, 2^968899999 is an apocalyptic number.

968899999 is a deficient number, since it is larger than the sum of its proper divisors (66065).

968899999 is a wasteful number, since it uses less digits than its factorization.

968899999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66064.

The product of its digits is 204073344, while the sum is 76.

The square root of 968899999 is about 31127.1585436255. The cubic root of 968899999 is about 989.5239690132.

The spelling of 968899999 in words is "nine hundred sixty-eight million, eight hundred ninety-nine thousand, nine hundred ninety-nine".