866901311 has 2 divisors, whose sum is σ = 866901312. Its totient is φ = 866901310.

The previous prime is 866901293. The next prime is 866901313. The reversal of 866901311 is 113109668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 866901311 - 2²⁶ = 799792447 is a prime.

Together with 866901313, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866901313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433450655 + 433450656.

It is an arithmetic number, because the mean of its divisors is an integer number (433450656).

Almost surely, 2^866901311 is an apocalyptic number.

866901311 is a deficient number, since it is larger than the sum of its proper divisors (1).

866901311 is an equidigital number, since it uses as much as digits as its factorization.

866901311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 866901311 is about 29443.1878538992. The cubic root of 866901311 is about 953.5055382624.

The spelling of 866901311 in words is "eight hundred sixty-six million, nine hundred one thousand, three hundred eleven".