866946846 has 16 divisors (see below), whose sum is σ = 1734583824. Its totient is φ = 288867264.

The previous prime is 866946809. The next prime is 866946853. The reversal of 866946846 is 648649668.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11641 + ... + 43236.

It is an arithmetic number, because the mean of its divisors is an integer number (108411489).

Almost surely, 2^866946846 is an apocalyptic number.

866946846 is an abundant number, since it is smaller than the sum of its proper divisors (867636978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866946846 is a wasteful number, since it uses less digits than its factorization.

866946846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57515.

The product of its digits is 11943936, while the sum is 57.

The square root of 866946846 is about 29443.9611125949. The cubic root of 866946846 is about 953.5222326327.

The spelling of 866946846 in words is "eight hundred sixty-six million, nine hundred forty-six thousand, eight hundred forty-six".