868297783 has 2 divisors, whose sum is σ = 868297784. Its totient is φ = 868297782.

The previous prime is 868297757. The next prime is 868297789. The reversal of 868297783 is 387792868.

868297783 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 868297783 - 2¹⁷ = 868166711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868297789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434148891 + 434148892.

It is an arithmetic number, because the mean of its divisors is an integer number (434148892).

Almost surely, 2^868297783 is an apocalyptic number.

868297783 is a deficient number, since it is larger than the sum of its proper divisors (1).

868297783 is an equidigital number, since it uses as much as digits as its factorization.

868297783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 58.

The square root of 868297783 is about 29466.8929987537. The cubic root of 868297783 is about 954.0172571949.

The spelling of 868297783 in words is "eight hundred sixty-eight million, two hundred ninety-seven thousand, seven hundred eighty-three".