864419317 has 2 divisors, whose sum is σ = 864419318. Its totient is φ = 864419316.

The previous prime is 864419287. The next prime is 864419329. The reversal of 864419317 is 713914468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842973156 + 21446161 = 29034^2 + 4631^2 .

It is a cyclic number.

It is not a de Polignac number, because 864419317 - 2¹⁹ = 863895029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864419917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432209658 + 432209659.

It is an arithmetic number, because the mean of its divisors is an integer number (432209659).

Almost surely, 2^864419317 is an apocalyptic number.

It is an amenable number.

864419317 is a deficient number, since it is larger than the sum of its proper divisors (1).

864419317 is an equidigital number, since it uses as much as digits as its factorization.

864419317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 864419317 is about 29401.0087752104. The cubic root of 864419317 is about 952.5946859484.

The spelling of 864419317 in words is "eight hundred sixty-four million, four hundred nineteen thousand, three hundred seventeen".