86695949 has 2 divisors, whose sum is σ = 86695950. Its totient is φ = 86695948.

The previous prime is 86695927. The next prime is 86695967. The reversal of 86695949 is 94959668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67947049 + 18748900 = 8243^2 + 4330^2 .

It is a cyclic number.

It is not a de Polignac number, because 86695949 - 2¹⁶ = 86630413 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86695894 and 86695903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86695919) by changing a digit.

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, 43347974 + 43347975.

It is an arithmetic number, because the mean of its divisors is an integer number (43347975).

Almost surely, 2^86695949 is an apocalyptic number.

It is an amenable number.

86695949 is a deficient number, since it is larger than the sum of its proper divisors (1).

86695949 is an equidigital number, since it uses as much as digits as its factorization.

86695949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 56.

The square root of 86695949 is about 9311.0659432742. The cubic root of 86695949 is about 442.5879663818.

The spelling of 86695949 in words is "eighty-six million, six hundred ninety-five thousand, nine hundred forty-nine".