866941800 has 48 divisors (see below), whose sum is σ = 2687521440. Its totient is φ = 231184320.

The previous prime is 866941799. The next prime is 866941807. The reversal of 866941800 is 8149668.

It is not an unprimeable number, because it can be changed into a prime (866941807) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 721852 + ... + 723051.

It is an arithmetic number, because the mean of its divisors is an integer number (55990030).

Almost surely, 2^866941800 is an apocalyptic number.

It is an amenable number.

866941800 is an abundant number, since it is smaller than the sum of its proper divisors (1820579640).

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

866941800 is a wasteful number, since it uses less digits than its factorization.

866941800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444922 (or 1444913 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 866941800 is about 29443.8754242712. The cubic root of 866941800 is about 953.5203826606.

The spelling of 866941800 in words is "eight hundred sixty-six million, nine hundred forty-one thousand, eight hundred".