868783 has 2 divisors, whose sum is σ = 868784. Its totient is φ = 868782.

The previous prime is 868771. The next prime is 868787. The reversal of 868783 is 387868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868783 - 2⁹ = 868271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868787) 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, 434391 + 434392.

It is an arithmetic number, because the mean of its divisors is an integer number (434392).

2⁸⁶⁸⁷⁸³ is an apocalyptic number.

868783 is a deficient number, since it is larger than the sum of its proper divisors (1).

868783 is an equidigital number, since it uses as much as digits as its factorization.

868783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 40.

The square root of 868783 is about 932.0852965260. The cubic root of 868783 is about 95.4194930186.

The spelling of 868783 in words is "eight hundred sixty-eight thousand, seven hundred eighty-three".