85363221 has 4 divisors (see below), whose sum is σ = 113817632. Its totient is φ = 56908812.

The previous prime is 85363183. The next prime is 85363237. The reversal of 85363221 is 12236358.

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 not a de Polignac number, because 85363221 - 2⁹ = 85362709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85363261) 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, 14227201 + ... + 14227206.

It is an arithmetic number, because the mean of its divisors is an integer number (28454408).

Almost surely, 2^85363221 is an apocalyptic number.

It is an amenable number.

85363221 is a deficient number, since it is larger than the sum of its proper divisors (28454411).

85363221 is a wasteful number, since it uses less digits than its factorization.

85363221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28454410.

The product of its digits is 8640, while the sum is 30.

The square root of 85363221 is about 9239.2218828211. The cubic root of 85363221 is about 440.3083599472.

Adding to 85363221 its reverse (12236358), we get a palindrome (97599579).

The spelling of 85363221 in words is "eighty-five million, three hundred sixty-three thousand, two hundred twenty-one".