866862383 has 2 divisors, whose sum is σ = 866862384. Its totient is φ = 866862382.

The previous prime is 866862349. The next prime is 866862421. The reversal of 866862383 is 383268668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 866862383 - 2⁸ = 866862127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866862323) 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, 433431191 + 433431192.

It is an arithmetic number, because the mean of its divisors is an integer number (433431192).

Almost surely, 2^866862383 is an apocalyptic number.

866862383 is a deficient number, since it is larger than the sum of its proper divisors (1).

866862383 is an equidigital number, since it uses as much as digits as its factorization.

866862383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 50.

The square root of 866862383 is about 29442.5267767561. The cubic root of 866862383 is about 953.4912657346.

The spelling of 866862383 in words is "eight hundred sixty-six million, eight hundred sixty-two thousand, three hundred eighty-three".