86480861 has 2 divisors, whose sum is σ = 86480862. Its totient is φ = 86480860.

The previous prime is 86480827. The next prime is 86480881. The reversal of 86480861 is 16808468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71995225 + 14485636 = 8485^2 + 3806^2 .

It is a cyclic number.

It is not a de Polignac number, because 86480861 - 2²⁶ = 19371997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86480881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43240430 + 43240431.

It is an arithmetic number, because the mean of its divisors is an integer number (43240431).

Almost surely, 2^86480861 is an apocalyptic number.

It is an amenable number.

86480861 is a deficient number, since it is larger than the sum of its proper divisors (1).

86480861 is an equidigital number, since it uses as much as digits as its factorization.

86480861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 86480861 is about 9299.5086429338. The cubic root of 86480861 is about 442.2216509420.

The spelling of 86480861 in words is "eighty-six million, four hundred eighty thousand, eight hundred sixty-one".