813227 has 2 divisors, whose sum is σ = 813228. Its totient is φ = 813226.

The previous prime is 813221. The next prime is 813251. The reversal of 813227 is 722318.

813227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-813227 is a prime.

It is a super-2 number, since 2×813227² = 1322676307058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (813221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406613 + 406614.

It is an arithmetic number, because the mean of its divisors is an integer number (406614).

2⁸¹³²²⁷ is an apocalyptic number.

813227 is a deficient number, since it is larger than the sum of its proper divisors (1).

813227 is an equidigital number, since it uses as much as digits as its factorization.

813227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 813227 is about 901.7909957413. The cubic root of 813227 is about 93.3406017582.

Subtracting from 813227 its reverse (722318), we obtain a palindrome (90909).

The spelling of 813227 in words is "eight hundred thirteen thousand, two hundred twenty-seven".