8409713905 has 16 divisors (see below), whose sum is σ = 10815035904. Its totient is φ = 6261330240.

The previous prime is 8409713887. The next prime is 8409713909. The reversal of 8409713905 is 5093179048.

It is a happy number.

It is not a de Polignac number, because 8409713905 - 2¹⁷ = 8409582833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8409713909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983961 + ... + 992470.

It is an arithmetic number, because the mean of its divisors is an integer number (675939744).

Almost surely, 2^8409713905 is an apocalyptic number.

It is an amenable number.

8409713905 is a deficient number, since it is larger than the sum of its proper divisors (2405321999).

8409713905 is a wasteful number, since it uses less digits than its factorization.

8409713905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976496.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 8409713905 is about 91704.4922836390. The cubic root of 8409713905 is about 2033.5759973010.

The spelling of 8409713905 in words is "eight billion, four hundred nine million, seven hundred thirteen thousand, nine hundred five".