866034461 has 2 divisors, whose sum is σ = 866034462. Its totient is φ = 866034460.

The previous prime is 866034443. The next prime is 866034467. The reversal of 866034461 is 164430668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 796311961 + 69722500 = 28219^2 + 8350^2 .

It is a cyclic number.

It is not a de Polignac number, because 866034461 - 2¹⁸ = 865772317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866034467) 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, 433017230 + 433017231.

It is an arithmetic number, because the mean of its divisors is an integer number (433017231).

Almost surely, 2^866034461 is an apocalyptic number.

It is an amenable number.

866034461 is a deficient number, since it is larger than the sum of its proper divisors (1).

866034461 is an equidigital number, since it uses as much as digits as its factorization.

866034461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 866034461 is about 29428.4634495245. The cubic root of 866034461 is about 953.1876159039.

The spelling of 866034461 in words is "eight hundred sixty-six million, thirty-four thousand, four hundred sixty-one".