86002561 has 2 divisors, whose sum is σ = 86002562. Its totient is φ = 86002560.

The previous prime is 86002529. The next prime is 86002571. The reversal of 86002561 is 16520068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59582961 + 26419600 = 7719^2 + 5140^2 .

It is a cyclic number.

It is not a de Polignac number, because 86002561 - 2⁵ = 86002529 is a prime.

It is not a weakly prime, because it can be changed into another prime (86002571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43001280 + 43001281.

It is an arithmetic number, because the mean of its divisors is an integer number (43001281).

Almost surely, 2^86002561 is an apocalyptic number.

It is an amenable number.

86002561 is a deficient number, since it is larger than the sum of its proper divisors (1).

86002561 is an equidigital number, since it uses as much as digits as its factorization.

86002561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 86002561 is about 9273.7565743338. The cubic root of 86002561 is about 441.4048776994.

The spelling of 86002561 in words is "eighty-six million, two thousand, five hundred sixty-one".