854163866 has 8 divisors (see below), whose sum is σ = 1284540660. Its totient is φ = 425983648.

The previous prime is 854163841. The next prime is 854163887. The reversal of 854163866 is 668361458.

It can be written as a sum of positive squares in 2 ways, for example, as 853866841 + 297025 = 29221^2 + 545^2 .

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

It is a super-4 number, since 4×854163866⁴ (a number of 37 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 854163866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548171 + ... + 549726.

Almost surely, 2^854163866 is an apocalyptic number.

854163866 is a deficient number, since it is larger than the sum of its proper divisors (430376794).

854163866 is a wasteful number, since it uses less digits than its factorization.

854163866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098288.

The product of its digits is 829440, while the sum is 47.

The square root of 854163866 is about 29226.0819474660. The cubic root of 854163866 is about 948.8125018437.

The spelling of 854163866 in words is "eight hundred fifty-four million, one hundred sixty-three thousand, eight hundred sixty-six".