8913578705 has 4 divisors (see below), whose sum is σ = 10696294452. Its totient is φ = 7130862960.

The previous prime is 8913578689. The next prime is 8913578777. The reversal of 8913578705 is 5078753198.

It is a happy number.

8913578705 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5078753198 = 2 ⋅2539376599.

It can be written as a sum of positive squares in 2 ways, for example, as 1776032449 + 7137546256 = 42143^2 + 84484^2 .

It is not a de Polignac number, because 8913578705 - 2⁴ = 8913578689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891357866 + ... + 891357875.

It is an arithmetic number, because the mean of its divisors is an integer number (2674073613).

Almost surely, 2^8913578705 is an apocalyptic number.

It is an amenable number.

8913578705 is a deficient number, since it is larger than the sum of its proper divisors (1782715747).

8913578705 is a wasteful number, since it uses less digits than its factorization.

8913578705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782715746.

The product of its (nonzero) digits is 2116800, while the sum is 53.

The square root of 8913578705 is about 94411.7508840928. The cubic root of 8913578705 is about 2073.4044892718.

The spelling of 8913578705 in words is "eight billion, nine hundred thirteen million, five hundred seventy-eight thousand, seven hundred five".