894565 has 16 divisors (see below), whose sum is σ = 1249920. Its totient is φ = 601920.

The previous prime is 894559. The next prime is 894581. The reversal of 894565 is 565498.

It is not a de Polignac number, because 894565 - 2¹⁵ = 861797 is a prime.

It is an Ulam number.

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

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2⁸⁹⁴⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

894565 is a deficient number, since it is larger than the sum of its proper divisors (355355).

894565 is a wasteful number, since it uses less digits than its factorization.

894565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 43200, while the sum is 37.

The square root of 894565 is about 945.8144638353. The cubic root of 894565 is about 96.3541964873.

Adding to 894565 its product of digits (43200), we get a triangular number (937765 = T₁₃₆₉).

The spelling of 894565 in words is "eight hundred ninety-four thousand, five hundred sixty-five".