8713784965 has 4 divisors (see below), whose sum is σ = 10456541964. Its totient is φ = 6971027968.

The previous prime is 8713784957. The next prime is 8713784971. The reversal of 8713784965 is 5694873178.

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 6006560004 + 2707224961 = 77502^2 + 52031^2 .

It is a cyclic number.

It is not a de Polignac number, because 8713784965 - 2³ = 8713784957 is a prime.

It is a Smith number, since the sum of its digits (58) 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 a congruent 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, 871378492 + ... + 871378501.

It is an arithmetic number, because the mean of its divisors is an integer number (2614135491).

Almost surely, 2^8713784965 is an apocalyptic number.

It is an amenable number.

8713784965 is a deficient number, since it is larger than the sum of its proper divisors (1742756999).

8713784965 is a wasteful number, since it uses less digits than its factorization.

8713784965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742756998.

The product of its digits is 10160640, while the sum is 58.

The square root of 8713784965 is about 93347.6564515682. The cubic root of 8713784965 is about 2057.7958141341.

The spelling of 8713784965 in words is "eight billion, seven hundred thirteen million, seven hundred eighty-four thousand, nine hundred sixty-five".