9408871705 has 4 divisors (see below), whose sum is σ = 11290646052. Its totient is φ = 7527097360.

The previous prime is 9408871643. The next prime is 9408871711. The reversal of 9408871705 is 5071788049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5071788049 = 197 ⋅25745117.

It can be written as a sum of positive squares in 2 ways, for example, as 6990297664 + 2418574041 = 83608^2 + 49179^2 .

It is not a de Polignac number, because 9408871705 - 2¹⁷ = 9408740633 is a prime.

It is a super-2 number, since 2×9408871705² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940887166 + ... + 940887175.

It is an arithmetic number, because the mean of its divisors is an integer number (2822661513).

Almost surely, 2^9408871705 is an apocalyptic number.

It is an amenable number.

9408871705 is a deficient number, since it is larger than the sum of its proper divisors (1881774347).

9408871705 is a wasteful number, since it uses less digits than its factorization.

9408871705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881774346.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 9408871705 is about 96999.3386833127. The cubic root of 9408871705 is about 2111.1180335204.

The spelling of 9408871705 in words is "nine billion, four hundred eight million, eight hundred seventy-one thousand, seven hundred five".