798821684 has 12 divisors (see below), whose sum is σ = 1398349764. Its totient is φ = 399293184.

The previous prime is 798821663. The next prime is 798821719. The reversal of 798821684 is 486128897.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 174821284 + 624000400 = 13222^2 + 24980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13139 + ... + 42074.

It is an arithmetic number, because the mean of its divisors is an integer number (116529147).

Almost surely, 2^798821684 is an apocalyptic number.

It is an amenable number.

798821684 is a deficient number, since it is larger than the sum of its proper divisors (599528080).

798821684 is a wasteful number, since it uses less digits than its factorization.

798821684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58834 (or 58832 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 798821684 is about 28263.4336909017. The cubic root of 798821684 is about 927.8617712391.

The spelling of 798821684 in words is "seven hundred ninety-eight million, eight hundred twenty-one thousand, six hundred eighty-four".