854866 has 4 divisors (see below), whose sum is σ = 1282302. Its totient is φ = 427432.

The previous prime is 854849. The next prime is 854869. The reversal of 854866 is 668458.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 469225 + 385641 = 685^2 + 621^2 .

It is not an unprimeable number, because it can be changed into a prime (854869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213715 + ... + 213718.

2⁸⁵⁴⁸⁶⁶ is an apocalyptic number.

854866 is a deficient number, since it is larger than the sum of its proper divisors (427436).

854866 is a wasteful number, since it uses less digits than its factorization.

854866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427435.

The product of its digits is 46080, while the sum is 37.

The square root of 854866 is about 924.5896387047. The cubic root of 854866 is about 94.9072409451.

The spelling of 854866 in words is "eight hundred fifty-four thousand, eight hundred sixty-six".