86836693 has 2 divisors, whose sum is σ = 86836694. Its totient is φ = 86836692.

The previous prime is 86836691. The next prime is 86836699. The reversal of 86836693 is 39663868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84768849 + 2067844 = 9207^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 86836693 - 2¹ = 86836691 is a prime.

It is a super-2 number, since 2×86836693² = 15081222502352498, which contains 22 as substring.

Together with 86836691, 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 (86836691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43418346 + 43418347.

It is an arithmetic number, because the mean of its divisors is an integer number (43418347).

Almost surely, 2^86836693 is an apocalyptic number.

It is an amenable number.

86836693 is a deficient number, since it is larger than the sum of its proper divisors (1).

86836693 is an equidigital number, since it uses as much as digits as its factorization.

86836693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The square root of 86836693 is about 9318.6207670449. The cubic root of 86836693 is about 442.8273390527.

It can be divided in two parts, 8683 and 6693, that added together give a square (15376 = 124²).

The spelling of 86836693 in words is "eighty-six million, eight hundred thirty-six thousand, six hundred ninety-three".