866846310 has 128 divisors (see below), whose sum is σ = 2493296640. Its totient is φ = 190396800.

The previous prime is 866846297. The next prime is 866846317. The reversal of 866846310 is 13648668.

It is a happy number.

866846310 is nontrivially palindromic in base 14.

866846310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×866846310⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866846317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 141205 + ... + 147215.

It is an arithmetic number, because the mean of its divisors is an integer number (19478880).

Almost surely, 2^866846310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866846310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246648320).

866846310 is an abundant number, since it is smaller than the sum of its proper divisors (1626450330).

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

866846310 is a wasteful number, since it uses less digits than its factorization.

866846310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 866846310 is about 29442.2538199778. The cubic root of 866846310 is about 953.4853726193.

The spelling of 866846310 in words is "eight hundred sixty-six million, eight hundred forty-six thousand, three hundred ten".