998396712 has 64 divisors (see below), whose sum is σ = 2776161600. Its totient is φ = 332458560.

The previous prime is 998396683. The next prime is 998396713. The reversal of 998396712 is 217693899.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (998396713) 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 15 ways as a sum of consecutive naturals, for example, 296623 + ... + 299969.

It is an arithmetic number, because the mean of its divisors is an integer number (43377525).

Almost surely, 2^998396712 is an apocalyptic number.

It is an amenable number.

998396712 is an abundant number, since it is smaller than the sum of its proper divisors (1777764888).

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

998396712 is a wasteful number, since it uses less digits than its factorization.

998396712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743 (or 4733 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 998396712 is about 31597.4162234826. The cubic root of 998396712 is about 999.4652847973.

The spelling of 998396712 in words is "nine hundred ninety-eight million, three hundred ninety-six thousand, seven hundred twelve".