86650247 has 2 divisors, whose sum is σ = 86650248. Its totient is φ = 86650246.

The previous prime is 86650211. The next prime is 86650271. The reversal of 86650247 is 74205668.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86650247 - 2⁶ = 86650183 is a prime.

It is a super-2 number, since 2×86650247² = 15016530610322018, 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 86650247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86650297) 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, 43325123 + 43325124.

It is an arithmetic number, because the mean of its divisors is an integer number (43325124).

Almost surely, 2^86650247 is an apocalyptic number.

86650247 is a deficient number, since it is larger than the sum of its proper divisors (1).

86650247 is an equidigital number, since it uses as much as digits as its factorization.

86650247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 86650247 is about 9308.6114431745. The cubic root of 86650247 is about 442.5101822377.

The spelling of 86650247 in words is "eighty-six million, six hundred fifty thousand, two hundred forty-seven".