86417761 has 2 divisors, whose sum is σ = 86417762. Its totient is φ = 86417760.

The previous prime is 86417743. The next prime is 86417797. The reversal of 86417761 is 16771468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86397025 + 20736 = 9295^2 + 144^2 .

It is a cyclic number.

It is not a de Polignac number, because 86417761 - 2⁷ = 86417633 is a prime.

It is not a weakly prime, because it can be changed into another prime (86417701) 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, 43208880 + 43208881.

It is an arithmetic number, because the mean of its divisors is an integer number (43208881).

Almost surely, 2^86417761 is an apocalyptic number.

It is an amenable number.

86417761 is a deficient number, since it is larger than the sum of its proper divisors (1).

86417761 is an equidigital number, since it uses as much as digits as its factorization.

86417761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 86417761 is about 9296.1153714872. The cubic root of 86417761 is about 442.1140703926.

It can be divided in two parts, 86417 and 761, that added together give a palindrome (87178).

The spelling of 86417761 in words is "eighty-six million, four hundred seventeen thousand, seven hundred sixty-one".