85488661 has 4 divisors (see below), whose sum is σ = 86318752. Its totient is φ = 84658572.

The previous prime is 85488647. The next prime is 85488673. The reversal of 85488661 is 16688458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85488661 - 2¹³ = 85480469 is a prime.

It is a super-3 number, since 3×85488661³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85488061) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 414891 + ... + 415096.

It is an arithmetic number, because the mean of its divisors is an integer number (21579688).

Almost surely, 2^85488661 is an apocalyptic number.

It is an amenable number.

85488661 is a deficient number, since it is larger than the sum of its proper divisors (830091).

85488661 is a wasteful number, since it uses less digits than its factorization.

85488661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830090.

The product of its digits is 368640, while the sum is 46.

The square root of 85488661 is about 9246.0078412253. The cubic root of 85488661 is about 440.5239299462.

The spelling of 85488661 in words is "eighty-five million, four hundred eighty-eight thousand, six hundred sixty-one".