894221 has 2 divisors, whose sum is σ = 894222. Its totient is φ = 894220.

The previous prime is 894211. The next prime is 894227. The reversal of 894221 is 122498.

894221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546121 + 348100 = 739^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 894221 - 2¹⁴ = 877837 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447110 + 447111.

It is an arithmetic number, because the mean of its divisors is an integer number (447111).

2⁸⁹⁴²²¹ is an apocalyptic number.

It is an amenable number.

894221 is a deficient number, since it is larger than the sum of its proper divisors (1).

894221 is an equidigital number, since it uses as much as digits as its factorization.

894221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 894221 is about 945.6325925009. The cubic root of 894221 is about 96.3418440802.

The spelling of 894221 in words is "eight hundred ninety-four thousand, two hundred twenty-one".