798619221 has 24 divisors (see below), whose sum is σ = 1184807520. Its totient is φ = 518172000.

The previous prime is 798619207. The next prime is 798619243. The reversal of 798619221 is 122916897.

798619221 is a `hidden beast` number, since 7 + 9 + 8 + 619 + 2 + 21 = 666.

It is not a de Polignac number, because 798619221 - 2⁵ = 798619189 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798619021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46186 + ... + 61076.

It is an arithmetic number, because the mean of its divisors is an integer number (49366980).

Almost surely, 2^798619221 is an apocalyptic number.

It is an amenable number.

798619221 is a deficient number, since it is larger than the sum of its proper divisors (386188299).

798619221 is a wasteful number, since it uses less digits than its factorization.

798619221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15057 (or 15054 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 798619221 is about 28259.8517512035. The cubic root of 798619221 is about 927.7833751236.

The spelling of 798619221 in words is "seven hundred ninety-eight million, six hundred nineteen thousand, two hundred twenty-one".