798784660 has 12 divisors (see below), whose sum is σ = 1677447828. Its totient is φ = 319513856.

The previous prime is 798784633. The next prime is 798784663. The reversal of 798784660 is 66487897.

It can be written as a sum of positive squares in 2 ways, for example, as 608510224 + 190274436 = 24668^2 + 13794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798784663) 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 3 ways as a sum of consecutive naturals, for example, 19969597 + ... + 19969636.

It is an arithmetic number, because the mean of its divisors is an integer number (139787319).

Almost surely, 2^798784660 is an apocalyptic number.

It is an amenable number.

798784660 is an abundant number, since it is smaller than the sum of its proper divisors (878663168).

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

798784660 is a wasteful number, since it uses less digits than its factorization.

798784660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39939242 (or 39939240 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The square root of 798784660 is about 28262.7787027390. The cubic root of 798784660 is about 927.8474360895.

The spelling of 798784660 in words is "seven hundred ninety-eight million, seven hundred eighty-four thousand, six hundred sixty".