85310811 has 24 divisors (see below), whose sum is σ = 131077440. Its totient is φ = 53281536.

The previous prime is 85310807. The next prime is 85310851. The reversal of 85310811 is 11801358.

It is not a de Polignac number, because 85310811 - 2² = 85310807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85310851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35401 + ... + 37733.

It is an arithmetic number, because the mean of its divisors is an integer number (5461560).

Almost surely, 2^85310811 is an apocalyptic number.

85310811 is a deficient number, since it is larger than the sum of its proper divisors (45766629).

85310811 is a wasteful number, since it uses less digits than its factorization.

85310811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595 (or 2592 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 85310811 is about 9236.3851695347. The cubic root of 85310811 is about 440.2182302434.

It can be divided in two parts, 853 and 10811, that added together give a square (11664 = 108²).

The spelling of 85310811 in words is "eighty-five million, three hundred ten thousand, eight hundred eleven".