998508672 has 360 divisors, whose sum is σ = 3537705015. Its totient is φ = 270273024.

The previous prime is 998508659. The next prime is 998508703. The reversal of 998508672 is 276805899.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 499254336 + 499254336 = 22344^2 + 22344^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22344.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 52553079 + ... + 52553097.

Almost surely, 2^998508672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998508672

998508672 is an abundant number, since it is smaller than the sum of its proper divisors (2539196343).

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

998508672 is an equidigital number, since it uses as much as digits as its factorization.

998508672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 998508672 is about 31599.1878376644. The cubic root of 998508672 is about 999.5026433440.

The spelling of 998508672 in words is "nine hundred ninety-eight million, five hundred eight thousand, six hundred seventy-two".