894661 has 4 divisors (see below), whose sum is σ = 916524. Its totient is φ = 872800.

The previous prime is 894643. The next prime is 894667. The reversal of 894661 is 166498.

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

It can be written as a sum of positive squares in 2 ways, for example, as 245025 + 649636 = 495^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 894661 - 2¹³ = 886469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894667) 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, 10870 + ... + 10951.

It is an arithmetic number, because the mean of its divisors is an integer number (229131).

2⁸⁹⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

894661 is a deficient number, since it is larger than the sum of its proper divisors (21863).

894661 is a wasteful number, since it uses less digits than its factorization.

894661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21862.

The product of its digits is 10368, while the sum is 34.

The square root of 894661 is about 945.8652123849. The cubic root of 894661 is about 96.3576431055.

The spelling of 894661 in words is "eight hundred ninety-four thousand, six hundred sixty-one".