998737960 has 96 divisors (see below), whose sum is σ = 2539836000. Its totient is φ = 350524160.

The previous prime is 998737939. The next prime is 998737963. The reversal of 998737960 is 69737899.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 998737895 and 998737904.

It is not an unprimeable number, because it can be changed into a prime (998737963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368691 + ... + 371389.

It is an arithmetic number, because the mean of its divisors is an integer number (26456625).

Almost surely, 2^998737960 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 998737960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269918000).

998737960 is an abundant number, since it is smaller than the sum of its proper divisors (1541098040).

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

998737960 is a wasteful number, since it uses less digits than its factorization.

998737960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779 (or 2746 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 58.

The square root of 998737960 is about 31602.8156973394. The cubic root of 998737960 is about 999.5791429042.

The spelling of 998737960 in words is "nine hundred ninety-eight million, seven hundred thirty-seven thousand, nine hundred sixty".