998326656 has 192 divisors, whose sum is σ = 2977294320. Its totient is φ = 320925696.

The previous prime is 998326639. The next prime is 998326673. The reversal of 998326656 is 656623899.

It is an interprime number because it is at equal distance from previous prime (998326639) and next prime (998326673).

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×998326656² = 1993312224160284672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5067550 + ... + 5067746.

Almost surely, 2^998326656 is an apocalyptic number.

998326656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998326656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488647160).

998326656 is an abundant number, since it is smaller than the sum of its proper divisors (1978967664).

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

998326656 is a wasteful number, since it uses less digits than its factorization.

998326656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 338 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 998326656 is about 31596.3076323801. The cubic root of 998326656 is about 999.4419072571.

The spelling of 998326656 in words is "nine hundred ninety-eight million, three hundred twenty-six thousand, six hundred fifty-six".