86440201 has 2 divisors, whose sum is σ = 86440202. Its totient is φ = 86440200.

The previous prime is 86440199. The next prime is 86440217. The reversal of 86440201 is 10204468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49716601 + 36723600 = 7051^2 + 6060^2 .

It is a cyclic number.

It is not a de Polignac number, because 86440201 - 2¹ = 86440199 is a prime.

Together with 86440199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86440241) 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, 43220100 + 43220101.

It is an arithmetic number, because the mean of its divisors is an integer number (43220101).

Almost surely, 2^86440201 is an apocalyptic number.

It is an amenable number.

86440201 is a deficient number, since it is larger than the sum of its proper divisors (1).

86440201 is an equidigital number, since it uses as much as digits as its factorization.

86440201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 86440201 is about 9297.3222489059. The cubic root of 86440201 is about 442.1523348304.

Adding to 86440201 its reverse (10204468), we get a palindrome (96644669).

The spelling of 86440201 in words is "eighty-six million, four hundred forty thousand, two hundred one".