868505237 has 2 divisors, whose sum is σ = 868505238. Its totient is φ = 868505236.

The previous prime is 868505213. The next prime is 868505243. The reversal of 868505237 is 732505868.

868505237 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 can be written as a sum of positive squares in only one way, i.e., 505755121 + 362750116 = 22489^2 + 19046^2 .

It is a cyclic number.

It is not a de Polignac number, because 868505237 - 2¹⁴ = 868488853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868505837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434252618 + 434252619.

It is an arithmetic number, because the mean of its divisors is an integer number (434252619).

Almost surely, 2^868505237 is an apocalyptic number.

It is an amenable number.

868505237 is a deficient number, since it is larger than the sum of its proper divisors (1).

868505237 is an equidigital number, since it uses as much as digits as its factorization.

868505237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 868505237 is about 29470.4129085427. The cubic root of 868505237 is about 954.0932291868.

The spelling of 868505237 in words is "eight hundred sixty-eight million, five hundred five thousand, two hundred thirty-seven".