868585746 has 16 divisors (see below), whose sum is σ = 1985338944. Its totient is φ = 248167344.

The previous prime is 868585691. The next prime is 868585747. The reversal of 868585746 is 647585868.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (868585747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10340265 + ... + 10340348.

It is an arithmetic number, because the mean of its divisors is an integer number (124083684).

Almost surely, 2^868585746 is an apocalyptic number.

868585746 is an abundant number, since it is smaller than the sum of its proper divisors (1116753198).

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

868585746 is a wasteful number, since it uses less digits than its factorization.

868585746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20680625.

The product of its digits is 12902400, while the sum is 57.

The square root of 868585746 is about 29471.7788061732. The cubic root of 868585746 is about 954.1227092310.

The spelling of 868585746 in words is "eight hundred sixty-eight million, five hundred eighty-five thousand, seven hundred forty-six".