845407866 has 16 divisors (see below), whose sum is σ = 1691114688. Its totient is φ = 281752800.

The previous prime is 845407861. The next prime is 845407867. The reversal of 845407866 is 668704548.

It is not an unprimeable number, because it can be changed into a prime (845407861) 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 7 ways as a sum of consecutive naturals, for example, 43971 + ... + 60201.

It is an arithmetic number, because the mean of its divisors is an integer number (105694668).

Almost surely, 2^845407866 is an apocalyptic number.

845407866 is an abundant number, since it is smaller than the sum of its proper divisors (845706822).

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

845407866 is a wasteful number, since it uses less digits than its factorization.

845407866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24917.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 845407866 is about 29075.8983696119. The cubic root of 845407866 is about 945.5592803682.

The spelling of 845407866 in words is "eight hundred forty-five million, four hundred seven thousand, eight hundred sixty-six".