866411 has 8 divisors (see below), whose sum is σ = 1066464. Its totient is φ = 685440.

The previous prime is 866399. The next prime is 866417. The reversal of 866411 is 114668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 866411 - 2¹⁴ = 850027 is a prime.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (866417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (133308).

2⁸⁶⁶⁴¹¹ is an apocalyptic number.

866411 is a deficient number, since it is larger than the sum of its proper divisors (200053).

866411 is a wasteful number, since it uses less digits than its factorization.

866411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541.

The product of its digits is 1152, while the sum is 26.

The square root of 866411 is about 930.8120110957. The cubic root of 866411 is about 95.3325739856.

The spelling of 866411 in words is "eight hundred sixty-six thousand, four hundred eleven".