9686869 has 2 divisors, whose sum is σ = 9686870. Its totient is φ = 9686868.

The previous prime is 9686867. The next prime is 9686879.

9686869 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8625969 + 1060900 = 2937^2 + 1030^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9686869 - 2¹ = 9686867 is a prime.

It is a super-2 number, since 2×9686869² = 187670862046322, which contains 22 as substring.

Together with 9686867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9686867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4843434 + 4843435.

It is an arithmetic number, because the mean of its divisors is an integer number (4843435).

Almost surely, 2^9686869 is an apocalyptic number.

It is an amenable number.

9686869 is a deficient number, since it is larger than the sum of its proper divisors (1).

9686869 is an equidigital number, since it uses as much as digits as its factorization.

9686869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The square root of 9686869 is about 3112.3735315672. The cubic root of 9686869 is about 213.1708460523.

The spelling of 9686869 in words is "nine million, six hundred eighty-six thousand, eight hundred sixty-nine".