799666281 has 24 divisors (see below), whose sum is σ = 1287393120. Its totient is φ = 475341696.

The previous prime is 799666261. The next prime is 799666291. The reversal of 799666281 is 182666997.

It is not a de Polignac number, because 799666281 - 2¹⁰ = 799665257 is a prime.

It is a super-2 number, since 2×799666281² = 1278932321936741922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (799666201) 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 23 ways as a sum of consecutive naturals, for example, 134635 + ... + 140448.

It is an arithmetic number, because the mean of its divisors is an integer number (53641380).

Almost surely, 2^799666281 is an apocalyptic number.

It is an amenable number.

799666281 is a deficient number, since it is larger than the sum of its proper divisors (487726839).

799666281 is a wasteful number, since it uses less digits than its factorization.

799666281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275125 (or 275122 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 799666281 is about 28278.3712579066. The cubic root of 799666281 is about 928.1886665709.

The spelling of 799666281 in words is "seven hundred ninety-nine million, six hundred sixty-six thousand, two hundred eighty-one".