226891 has 4 divisors (see below), whose sum is σ = 259312. Its totient is φ = 194472.

The previous prime is 226871. The next prime is 226901. The reversal of 226891 is 198622.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 226891 - 2⁹ = 226379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226871) 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, 16200 + ... + 16213.

It is an arithmetic number, because the mean of its divisors is an integer number (64828).

2²²⁶⁸⁹¹ is an apocalyptic number.

226891 is a deficient number, since it is larger than the sum of its proper divisors (32421).

226891 is an equidigital number, since it uses as much as digits as its factorization.

226891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32420.

The product of its digits is 1728, while the sum is 28.

The square root of 226891 is about 476.3307674295. The cubic root of 226891 is about 60.9919365853.

The spelling of 226891 in words is "two hundred twenty-six thousand, eight hundred ninety-one".