8697794813 has 4 divisors (see below), whose sum is σ = 9209429820. Its totient is φ = 8186159808.

The previous prime is 8697794797. The next prime is 8697794843. The reversal of 8697794813 is 3184977968.

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 5218328644 + 3479466169 = 72238^2 + 58987^2 .

It is a cyclic number.

It is not a de Polignac number, because 8697794813 - 2⁴ = 8697794797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8697794843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255817478 + ... + 255817511.

It is an arithmetic number, because the mean of its divisors is an integer number (2302357455).

Almost surely, 2^8697794813 is an apocalyptic number.

It is an amenable number.

8697794813 is a deficient number, since it is larger than the sum of its proper divisors (511635007).

8697794813 is a wasteful number, since it uses less digits than its factorization.

8697794813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511635006.

The product of its digits is 18289152, while the sum is 62.

The square root of 8697794813 is about 93261.9687386021. The cubic root of 8697794813 is about 2056.5363302419.

The spelling of 8697794813 in words is "eight billion, six hundred ninety-seven million, seven hundred ninety-four thousand, eight hundred thirteen".