86446249 has 2 divisors, whose sum is σ = 86446250. Its totient is φ = 86446248.

The previous prime is 86446223. The next prime is 86446279. The reversal of 86446249 is 94264468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82682649 + 3763600 = 9093^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 86446249 - 2²³ = 78057641 is a prime.

It is not a weakly prime, because it can be changed into another prime (86446279) 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, 43223124 + 43223125.

It is an arithmetic number, because the mean of its divisors is an integer number (43223125).

Almost surely, 2^86446249 is an apocalyptic number.

It is an amenable number.

86446249 is a deficient number, since it is larger than the sum of its proper divisors (1).

86446249 is an equidigital number, since it uses as much as digits as its factorization.

86446249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 43.

The square root of 86446249 is about 9297.6474981578. The cubic root of 86446249 is about 442.1626466797.

The spelling of 86446249 in words is "eighty-six million, four hundred forty-six thousand, two hundred forty-nine".