85753866 has 32 divisors (see below), whose sum is σ = 188863488. Its totient is φ = 25741040.

The previous prime is 85753853. The next prime is 85753873. The reversal of 85753866 is 66835758.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (5901984).

Almost surely, 2^85753866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85753866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94431744).

85753866 is an abundant number, since it is smaller than the sum of its proper divisors (103109622).

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

85753866 is a wasteful number, since it uses less digits than its factorization.

85753866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12266.

The product of its digits is 1209600, while the sum is 48.

The square root of 85753866 is about 9260.3383307523. The cubic root of 85753866 is about 440.9789943769.

The spelling of 85753866 in words is "eighty-five million, seven hundred fifty-three thousand, eight hundred sixty-six".