866034101 has 2 divisors, whose sum is σ = 866034102. Its totient is φ = 866034100.

The previous prime is 866034089. The next prime is 866034107. The reversal of 866034101 is 101430668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789891025 + 76143076 = 28105^2 + 8726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-866034101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866034107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433017050 + 433017051.

It is an arithmetic number, because the mean of its divisors is an integer number (433017051).

Almost surely, 2^866034101 is an apocalyptic number.

It is an amenable number.

866034101 is a deficient number, since it is larger than the sum of its proper divisors (1).

866034101 is an equidigital number, since it uses as much as digits as its factorization.

866034101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 866034101 is about 29428.4573329966. The cubic root of 866034101 is about 953.1874838277.

Adding to 866034101 its reverse (101430668), we get a palindrome (967464769).

The spelling of 866034101 in words is "eight hundred sixty-six million, thirty-four thousand, one hundred one".