798889728 has 432 divisors, whose sum is σ = 2818561536. Its totient is φ = 198696960.

The previous prime is 798889727. The next prime is 798889739. The reversal of 798889728 is 827988897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798889727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11251933 + ... + 11252003.

It is an arithmetic number, because the mean of its divisors is an integer number (6524448).

Almost surely, 2^798889728 is an apocalyptic number.

798889728 is a gapful number since it is divisible by the number (78) 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 798889728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409280768).

798889728 is an abundant number, since it is smaller than the sum of its proper divisors (2019671808).

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

798889728 is a wasteful number, since it uses less digits than its factorization.

798889728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 119 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 66.

The square root of 798889728 is about 28264.6374114369. The cubic root of 798889728 is about 927.8881157225. Note that the first 3 decimals are identical.

The spelling of 798889728 in words is "seven hundred ninety-eight million, eight hundred eighty-nine thousand, seven hundred twenty-eight".