8728444998 has 288 divisors, whose sum is σ = 25462382400. Its totient is φ = 2101510656.

The previous prime is 8728444957. The next prime is 8728445041. The reversal of 8728444998 is 8994448278.

8728444998 is a `hidden beast` number, since 87 + 28 + 4 + 449 + 98 = 666.

It is a super-2 number, since 2×8728444998² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 17147968 + ... + 17148476.

It is an arithmetic number, because the mean of its divisors is an integer number (88411050).

Almost surely, 2^8728444998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8728444998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12731191200).

8728444998 is an abundant number, since it is smaller than the sum of its proper divisors (16733937402).

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

8728444998 is a wasteful number, since it uses less digits than its factorization.

8728444998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 582 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The square root of 8728444998 is about 93426.1472929287. The cubic root of 8728444998 is about 2058.9491764082.

The spelling of 8728444998 in words is "eight billion, seven hundred twenty-eight million, four hundred forty-four thousand, nine hundred ninety-eight".