85813776 has 80 divisors (see below), whose sum is σ = 247563520. Its totient is φ = 28460160.

The previous prime is 85813757. The next prime is 85813781. The reversal of 85813776 is 67731858.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116706 + ... + 117438.

It is an arithmetic number, because the mean of its divisors is an integer number (3094544).

Almost surely, 2^85813776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85813776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123781760).

85813776 is an abundant number, since it is smaller than the sum of its proper divisors (161749744).

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

85813776 is a wasteful number, since it uses less digits than its factorization.

85813776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1009 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 85813776 is about 9263.5725289977. The cubic root of 85813776 is about 441.0816638067.

The spelling of 85813776 in words is "eighty-five million, eight hundred thirteen thousand, seven hundred seventy-six".