868364447 has 2 divisors, whose sum is σ = 868364448. Its totient is φ = 868364446.

The previous prime is 868364411. The next prime is 868364449. The reversal of 868364447 is 744463868.

868364447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868364447 - 2⁶ = 868364383 is a prime.

Together with 868364449, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 868364395 and 868364404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868364449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434182223 + 434182224.

It is an arithmetic number, because the mean of its divisors is an integer number (434182224).

Almost surely, 2^868364447 is an apocalyptic number.

868364447 is a deficient number, since it is larger than the sum of its proper divisors (1).

868364447 is an equidigital number, since it uses as much as digits as its factorization.

868364447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3096576, while the sum is 50.

The square root of 868364447 is about 29468.0241448252. The cubic root of 868364447 is about 954.0416716221.

The spelling of 868364447 in words is "eight hundred sixty-eight million, three hundred sixty-four thousand, four hundred forty-seven".