866133946 has 8 divisors (see below), whose sum is σ = 1302742080. Its totient is φ = 431886588.

The previous prime is 866133941. The next prime is 866133949. The reversal of 866133946 is 649331668.

866133946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 866133896 and 866133905.

It is not an unprimeable number, because it can be changed into a prime (866133941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589276 + ... + 590743.

It is an arithmetic number, because the mean of its divisors is an integer number (162842760).

Almost surely, 2^866133946 is an apocalyptic number.

866133946 is a deficient number, since it is larger than the sum of its proper divisors (436608134).

866133946 is a wasteful number, since it uses less digits than its factorization.

866133946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180388.

The product of its digits is 559872, while the sum is 46.

The square root of 866133946 is about 29430.1536863130. The cubic root of 866133946 is about 953.2241133888.

The spelling of 866133946 in words is "eight hundred sixty-six million, one hundred thirty-three thousand, nine hundred forty-six".