868460993 has 2 divisors, whose sum is σ = 868460994. Its totient is φ = 868460992.

The previous prime is 868460977. The next prime is 868461029. The reversal of 868460993 is 399064868.

868460993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 868363024 + 97969 = 29468^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 868460993 - 2⁴ = 868460977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (868460093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434230496 + 434230497.

It is an arithmetic number, because the mean of its divisors is an integer number (434230497).

Almost surely, 2^868460993 is an apocalyptic number.

It is an amenable number.

868460993 is a deficient number, since it is larger than the sum of its proper divisors (1).

868460993 is an equidigital number, since it uses as much as digits as its factorization.

868460993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 868460993 is about 29469.6622478100. The cubic root of 868460993 is about 954.0770275506.

The spelling of 868460993 in words is "eight hundred sixty-eight million, four hundred sixty thousand, nine hundred ninety-three".