85661082 has 48 divisors (see below), whose sum is σ = 210406560. Its totient is φ = 24968736.

The previous prime is 85661071. The next prime is 85661089. The reversal of 85661082 is 28016658.

It is a happy number.

85661082 is a `hidden beast` number, since 8 + 566 + 10 + 82 = 666.

It is not an unprimeable number, because it can be changed into a prime (85661089) 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 23 ways as a sum of consecutive naturals, for example, 5188 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (4383470).

Almost surely, 2^85661082 is an apocalyptic number.

85661082 is an abundant number, since it is smaller than the sum of its proper divisors (124745478).

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

85661082 is a wasteful number, since it uses less digits than its factorization.

85661082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19307 (or 19304 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 85661082 is about 9255.3272227404. The cubic root of 85661082 is about 440.8198934427.

The spelling of 85661082 in words is "eighty-five million, six hundred sixty-one thousand, eighty-two".