998080864 has 48 divisors (see below), whose sum is σ = 2153221056. Its totient is φ = 451638400.

The previous prime is 998080847. The next prime is 998080873. The reversal of 998080864 is 468080899.

998080864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×998080864² = 1992330822165972992, 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 7 ways as a sum of consecutive naturals, for example, 73659 + ... + 86149.

It is an arithmetic number, because the mean of its divisors is an integer number (44858772).

Almost surely, 2^998080864 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 998080864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076610528).

998080864 is an abundant number, since it is smaller than the sum of its proper divisors (1155140192).

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

998080864 is a wasteful number, since it uses less digits than its factorization.

998080864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12739 (or 12731 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 998080864 is about 31592.4178245351. The cubic root of 998080864 is about 999.3598783317.

The spelling of 998080864 in words is "nine hundred ninety-eight million, eighty thousand, eight hundred sixty-four".