799185221 has 4 divisors (see below), whose sum is σ = 801475500. Its totient is φ = 796894944.

The previous prime is 799185197. The next prime is 799185223. The reversal of 799185221 is 122581997.

It is a happy number.

799185221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 526473025 + 272712196 = 22945^2 + 16514^2 .

It is a cyclic number.

It is not a de Polignac number, because 799185221 - 2⁶ = 799185157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799185223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144616 + ... + 1145313.

It is an arithmetic number, because the mean of its divisors is an integer number (200368875).

Almost surely, 2^799185221 is an apocalyptic number.

It is an amenable number.

799185221 is a deficient number, since it is larger than the sum of its proper divisors (2290279).

799185221 is a wasteful number, since it uses less digits than its factorization.

799185221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290278.

The product of its digits is 90720, while the sum is 44.

The square root of 799185221 is about 28269.8641843218. The cubic root of 799185221 is about 928.0025039103.

The spelling of 799185221 in words is "seven hundred ninety-nine million, one hundred eighty-five thousand, two hundred twenty-one".