984633864 has 64 divisors (see below), whose sum is σ = 2572784640. Its totient is φ = 313431360.

The previous prime is 984633851. The next prime is 984633877. The reversal of 984633864 is 468336489.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (984633851) and next prime (984633877).

It is a super-2 number, since 2×984633864² = 1939007692271140992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488619 + ... + 490629.

It is an arithmetic number, because the mean of its divisors is an integer number (40199760).

Almost surely, 2^984633864 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 984633864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1286392320).

984633864 is an abundant number, since it is smaller than the sum of its proper divisors (1588150776).

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

984633864 is a wasteful number, since it uses less digits than its factorization.

984633864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930 (or 2926 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The square root of 984633864 is about 31378.8760792990. The cubic root of 984633864 is about 994.8514930334.

The spelling of 984633864 in words is "nine hundred eighty-four million, six hundred thirty-three thousand, eight hundred sixty-four".