85247227 has 4 divisors (see below), whose sum is σ = 91804720. Its totient is φ = 78689736.

The previous prime is 85247209. The next prime is 85247257. The reversal of 85247227 is 72274258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85247227 is a prime.

It is a super-2 number, since 2×85247227² = 14534179422379058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85247257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3278727 + ... + 3278752.

It is an arithmetic number, because the mean of its divisors is an integer number (22951180).

Almost surely, 2^85247227 is an apocalyptic number.

85247227 is a deficient number, since it is larger than the sum of its proper divisors (6557493).

85247227 is a wasteful number, since it uses less digits than its factorization.

85247227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557492.

The product of its digits is 62720, while the sum is 37.

The square root of 85247227 is about 9232.9424887194. The cubic root of 85247227 is about 440.1088349918.

It can be divided in two parts, 8524 and 7227, that added together give a palindrome (15751).

The spelling of 85247227 in words is "eighty-five million, two hundred forty-seven thousand, two hundred twenty-seven".