85651712 has 36 divisors (see below), whose sum is σ = 181035036. Its totient is φ = 40304640.

The previous prime is 85651711. The next prime is 85651723. The reversal of 85651712 is 21715658.

It can be written as a sum of positive squares in 2 ways, for example, as 77721856 + 7929856 = 8816^2 + 2816^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85651711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5489 + ... + 14192.

It is an arithmetic number, because the mean of its divisors is an integer number (5028751).

Almost surely, 2^85651712 is an apocalyptic number.

It is an amenable number.

85651712 is an abundant number, since it is smaller than the sum of its proper divisors (95383324).

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

85651712 is a wasteful number, since it uses less digits than its factorization.

85651712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19714 (or 19700 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The square root of 85651712 is about 9254.8210139365. The cubic root of 85651712 is about 440.8038198928.

The spelling of 85651712 in words is "eighty-five million, six hundred fifty-one thousand, seven hundred twelve".