86247823 has 2 divisors, whose sum is σ = 86247824. Its totient is φ = 86247822.

The previous prime is 86247803. The next prime is 86247829. The reversal of 86247823 is 32874268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86247823 - 2⁹ = 86247311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86247829) 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, 43123911 + 43123912.

It is an arithmetic number, because the mean of its divisors is an integer number (43123912).

Almost surely, 2^86247823 is an apocalyptic number.

86247823 is a deficient number, since it is larger than the sum of its proper divisors (1).

86247823 is an equidigital number, since it uses as much as digits as its factorization.

86247823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The square root of 86247823 is about 9286.9706040237. The cubic root of 86247823 is about 441.8240787590.

The spelling of 86247823 in words is "eighty-six million, two hundred forty-seven thousand, eight hundred twenty-three".