799405105 has 4 divisors (see below), whose sum is σ = 959286132. Its totient is φ = 639524080.

The previous prime is 799405081. The next prime is 799405141. The reversal of 799405105 is 501504997.

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 216472369 + 582932736 = 14713^2 + 24144^2 .

It is not a de Polignac number, because 799405105 - 2²³ = 791016497 is a prime.

It is a super-2 number, since 2×799405105² = 1278097043800122050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 79940506 + ... + 79940515.

It is an arithmetic number, because the mean of its divisors is an integer number (239821533).

Almost surely, 2^799405105 is an apocalyptic number.

It is an amenable number.

799405105 is a deficient number, since it is larger than the sum of its proper divisors (159881027).

799405105 is a wasteful number, since it uses less digits than its factorization.

799405105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159881026.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 799405105 is about 28273.7529344797. The cubic root of 799405105 is about 928.0876048298.

The spelling of 799405105 in words is "seven hundred ninety-nine million, four hundred five thousand, one hundred five".