798505844 has 36 divisors (see below), whose sum is σ = 1512543564. Its totient is φ = 368649216.

The previous prime is 798505819. The next prime is 798505849. The reversal of 798505844 is 448505897.

It can be written as a sum of positive squares in 6 ways, for example, as 165379600 + 633126244 = 12860^2 + 25162^2 .

It is a super-2 number, since 2×798505844² = 1275223165804304672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 798505792 and 798505801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798505849) 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 11 ways as a sum of consecutive naturals, for example, 54752 + ... + 67784.

It is an arithmetic number, because the mean of its divisors is an integer number (42015099).

Almost surely, 2^798505844 is an apocalyptic number.

It is an amenable number.

798505844 is a deficient number, since it is larger than the sum of its proper divisors (714037720).

798505844 is a wasteful number, since it uses less digits than its factorization.

798505844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13124 (or 13105 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 798505844 is about 28257.8457069891. The cubic root of 798505844 is about 927.7394683943.

The spelling of 798505844 in words is "seven hundred ninety-eight million, five hundred five thousand, eight hundred forty-four".