865833361 has 2 divisors, whose sum is σ = 865833362. Its totient is φ = 865833360.

The previous prime is 865833323. The next prime is 865833383. The reversal of 865833361 is 163338568.

865833361 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., 587577600 + 278255761 = 24240^2 + 16681^2 .

It is a cyclic number.

It is not a de Polignac number, because 865833361 - 2¹⁹ = 865309073 is a prime.

It is not a weakly prime, because it can be changed into another prime (865833301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432916680 + 432916681.

It is an arithmetic number, because the mean of its divisors is an integer number (432916681).

Almost surely, 2^865833361 is an apocalyptic number.

It is an amenable number.

865833361 is a deficient number, since it is larger than the sum of its proper divisors (1).

865833361 is an equidigital number, since it uses as much as digits as its factorization.

865833361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 865833361 is about 29425.0464910423. The cubic root of 865833361 is about 953.1138309769.

The spelling of 865833361 in words is "eight hundred sixty-five million, eight hundred thirty-three thousand, three hundred sixty-one".