864419273 has 2 divisors, whose sum is σ = 864419274. Its totient is φ = 864419272.

The previous prime is 864419267. The next prime is 864419287. The reversal of 864419273 is 372914468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556346569 + 308072704 = 23587^2 + 17552^2 .

It is a cyclic number.

It is not a de Polignac number, because 864419273 - 2⁶ = 864419209 is a prime.

It is not a weakly prime, because it can be changed into another prime (864419233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432209636 + 432209637.

It is an arithmetic number, because the mean of its divisors is an integer number (432209637).

Almost surely, 2^864419273 is an apocalyptic number.

It is an amenable number.

864419273 is a deficient number, since it is larger than the sum of its proper divisors (1).

864419273 is an equidigital number, since it uses as much as digits as its factorization.

864419273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 864419273 is about 29401.0080269368. The cubic root of 864419273 is about 952.5946697857.

The spelling of 864419273 in words is "eight hundred sixty-four million, four hundred nineteen thousand, two hundred seventy-three".