998531006 has 32 divisors (see below), whose sum is σ = 1737469440. Its totient is φ = 425353600.

The previous prime is 998531003. The next prime is 998531029. The reversal of 998531006 is 600135899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998531003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 83801 + ... + 94971.

It is an arithmetic number, because the mean of its divisors is an integer number (54295920).

Almost surely, 2^998531006 is an apocalyptic number.

998531006 is a deficient number, since it is larger than the sum of its proper divisors (738938434).

998531006 is a wasteful number, since it uses less digits than its factorization.

998531006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11440.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 998531006 is about 31599.5412308470. The cubic root of 998531006 is about 999.5100953660.

The spelling of 998531006 in words is "nine hundred ninety-eight million, five hundred thirty-one thousand, six".