8688677213 has 2 divisors, whose sum is σ = 8688677214. Its totient is φ = 8688677212.

The previous prime is 8688677209. The next prime is 8688677267. The reversal of 8688677213 is 3127768868.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6822264409 + 1866412804 = 82597^2 + 43202^2 .

It is a cyclic number.

It is not a de Polignac number, because 8688677213 - 2² = 8688677209 is a prime.

It is a super-2 number, since 2×8688677213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8688670213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344338606 + 4344338607.

It is an arithmetic number, because the mean of its divisors is an integer number (4344338607).

Almost surely, 2^8688677213 is an apocalyptic number.

It is an amenable number.

8688677213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8688677213 is an equidigital number, since it uses as much as digits as its factorization.

8688677213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 56.

The square root of 8688677213 is about 93213.0742599985. The cubic root of 8688677213 is about 2055.8174801669.

The spelling of 8688677213 in words is "eight billion, six hundred eighty-eight million, six hundred seventy-seven thousand, two hundred thirteen".