998718006 has 192 divisors, whose sum is σ = 2618334720. Its totient is φ = 250398720.

The previous prime is 998717981. The next prime is 998718011. The reversal of 998718006 is 600817899.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 4361100 + ... + 4361328.

It is an arithmetic number, because the mean of its divisors is an integer number (13637160).

Almost surely, 2^998718006 is an apocalyptic number.

It is a pronic number, being equal to 31602×31603.

It is a practical number, because each smaller number is the sum of distinct divisors of 998718006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309167360).

998718006 is an abundant number, since it is smaller than the sum of its proper divisors (1619616714).

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

998718006 is a wasteful number, since it uses less digits than its factorization.

998718006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 998718006 is about 31602.4999960446. The cubic root of 998718006 is about 999.5724859244.

The spelling of 998718006 in words is "nine hundred ninety-eight million, seven hundred eighteen thousand, six".