798959898 has 48 divisors (see below), whose sum is σ = 1898129376. Its totient is φ = 240868320.

The previous prime is 798959893. The next prime is 798959911. The reversal of 798959898 is 898959897.

It is a super-2 number, since 2×798959898² = 1276673837224340808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (798959893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28765 + ... + 49247.

It is an arithmetic number, because the mean of its divisors is an integer number (39544362).

Almost surely, 2^798959898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 798959898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949064688).

798959898 is an abundant number, since it is smaller than the sum of its proper divisors (1099169478).

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

798959898 is a wasteful number, since it uses less digits than its factorization.

798959898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20699 (or 20696 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 72.

The square root of 798959898 is about 28265.8786879163. The cubic root of 798959898 is about 927.9152817591.

Subtracting 798959898 from its reverse (898959897), we obtain a palindrome (99999999).

The spelling of 798959898 in words is "seven hundred ninety-eight million, nine hundred fifty-nine thousand, eight hundred ninety-eight".