86688269 has 2 divisors, whose sum is σ = 86688270. Its totient is φ = 86688268.

The previous prime is 86688223. The next prime is 86688281. The reversal of 86688269 is 96288668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 23406244 = 7955^2 + 4838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86688269 is a prime.

It is a super-2 number, since 2×86688269² = 15029711964432722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86688269.

It is a congruent number.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344134 + 43344135.

It is an arithmetic number, because the mean of its divisors is an integer number (43344135).

Almost surely, 2^86688269 is an apocalyptic number.

It is an amenable number.

86688269 is a deficient number, since it is larger than the sum of its proper divisors (1).

86688269 is an equidigital number, since it uses as much as digits as its factorization.

86688269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 53.

The square root of 86688269 is about 9310.6535216385. The cubic root of 86688269 is about 442.5748970439.

The spelling of 86688269 in words is "eighty-six million, six hundred eighty-eight thousand, two hundred sixty-nine".