894521 has 2 divisors, whose sum is σ = 894522. Its totient is φ = 894520.

The previous prime is 894511. The next prime is 894527. The reversal of 894521 is 125498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 346921 = 740^2 + 589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-894521 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (894527) 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 as a sum of consecutive naturals, namely, 447260 + 447261.

It is an arithmetic number, because the mean of its divisors is an integer number (447261).

2⁸⁹⁴⁵²¹ is an apocalyptic number.

It is an amenable number.

894521 is a deficient number, since it is larger than the sum of its proper divisors (1).

894521 is an equidigital number, since it uses as much as digits as its factorization.

894521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 894521 is about 945.7912031733. The cubic root of 894521 is about 96.3526167049.

The spelling of 894521 in words is "eight hundred ninety-four thousand, five hundred twenty-one".