998940696 has 64 divisors (see below), whose sum is σ = 2703697920. Its totient is φ = 305738880.

The previous prime is 998940647. The next prime is 998940703. The reversal of 998940696 is 696049899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51211 + ... + 67973.

It is an arithmetic number, because the mean of its divisors is an integer number (42245280).

Almost surely, 2^998940696 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 998940696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351848960).

998940696 is an abundant number, since it is smaller than the sum of its proper divisors (1704757224).

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

998940696 is a wasteful number, since it uses less digits than its factorization.

998940696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976 (or 16972 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 60.

The square root of 998940696 is about 31606.0230968719. The cubic root of 998940696 is about 999.6467739127.

The spelling of 998940696 in words is "nine hundred ninety-eight million, nine hundred forty thousand, six hundred ninety-six".