85994577 has 12 divisors (see below), whose sum is σ = 124297524. Its totient is φ = 57291360.

The previous prime is 85994521. The next prime is 85994591. The reversal of 85994577 is 77549958.

85994577 is a `hidden beast` number, since 8 + 599 + 45 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26873856 + 59120721 = 5184^2 + 7689^2 .

It is not a de Polignac number, because 85994577 - 2¹⁰ = 85993553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85954577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19423 + ... + 23435.

It is an arithmetic number, because the mean of its divisors is an integer number (10358127).

Almost surely, 2^85994577 is an apocalyptic number.

It is an amenable number.

85994577 is a deficient number, since it is larger than the sum of its proper divisors (38302947).

85994577 is a wasteful number, since it uses less digits than its factorization.

85994577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400 (or 6397 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 85994577 is about 9273.3261023216. The cubic root of 85994577 is about 441.3912180845.

The spelling of 85994577 in words is "eighty-five million, nine hundred ninety-four thousand, five hundred seventy-seven".