799221 has 8 divisors (see below), whose sum is σ = 1128384. Its totient is φ = 501440.

The previous prime is 799219. The next prime is 799223. The reversal of 799221 is 122997.

It is an interprime number because it is at equal distance from previous prime (799219) and next prime (799223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 799221 - 2¹ = 799219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7785 + ... + 7886.

It is an arithmetic number, because the mean of its divisors is an integer number (141048).

2⁷⁹⁹²²¹ is an apocalyptic number.

It is an amenable number.

799221 is a deficient number, since it is larger than the sum of its proper divisors (329163).

799221 is a wasteful number, since it uses less digits than its factorization.

799221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691.

The product of its digits is 2268, while the sum is 30.

The square root of 799221 is about 893.9916106989. The cubic root of 799221 is about 92.8016352392.

Subtracting from 799221 its product of digits (2268), we obtain a triangular number (796953 = T₁₂₆₂).

The spelling of 799221 in words is "seven hundred ninety-nine thousand, two hundred twenty-one".