85586321 has 4 divisors (see below), whose sum is σ = 85608432. Its totient is φ = 85564212.

The previous prime is 85586287. The next prime is 85586323. The reversal of 85586321 is 12368558.

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 a de Polignac number, because none of the positive numbers 2^k-85586321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85586323) 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 3 ways as a sum of consecutive naturals, for example, 3551 + ... + 13556.

It is an arithmetic number, because the mean of its divisors is an integer number (21402108).

Almost surely, 2^85586321 is an apocalyptic number.

It is an amenable number.

85586321 is a deficient number, since it is larger than the sum of its proper divisors (22111).

85586321 is a wasteful number, since it uses less digits than its factorization.

85586321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22110.

The product of its digits is 57600, while the sum is 38.

The square root of 85586321 is about 9251.2875320141. The cubic root of 85586321 is about 440.6916137640.

The spelling of 85586321 in words is "eighty-five million, five hundred eighty-six thousand, three hundred twenty-one".