866422033 has 2 divisors, whose sum is σ = 866422034. Its totient is φ = 866422032.

The previous prime is 866422019. The next prime is 866422049. The reversal of 866422033 is 330224668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494973504 + 371448529 = 22248^2 + 19273^2 .

It is a cyclic number.

It is not a de Polignac number, because 866422033 - 2⁵ = 866422001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 866422033.

It is not a weakly prime, because it can be changed into another prime (866422013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433211016 + 433211017.

It is an arithmetic number, because the mean of its divisors is an integer number (433211017).

Almost surely, 2^866422033 is an apocalyptic number.

It is an amenable number.

866422033 is a deficient number, since it is larger than the sum of its proper divisors (1).

866422033 is an equidigital number, since it uses as much as digits as its factorization.

866422033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 866422033 is about 29435.0476982797. The cubic root of 866422033 is about 953.3297864338.

The spelling of 866422033 in words is "eight hundred sixty-six million, four hundred twenty-two thousand, thirty-three".