895661 has 4 divisors (see below), whose sum is σ = 964572. Its totient is φ = 826752.

The previous prime is 895651. The next prime is 895667. The reversal of 895661 is 166598.

895661 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 166598 = 2 ⋅83299.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 630436 = 515^2 + 794^2 .

It is a cyclic number.

It is not a de Polignac number, because 895661 - 2¹⁰ = 894637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (895667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34436 + ... + 34461.

It is an arithmetic number, because the mean of its divisors is an integer number (241143).

2⁸⁹⁵⁶⁶¹ is an apocalyptic number.

It is an amenable number.

895661 is a deficient number, since it is larger than the sum of its proper divisors (68911).

895661 is a wasteful number, since it uses less digits than its factorization.

895661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68910.

The product of its digits is 12960, while the sum is 35.

The square root of 895661 is about 946.3936812976. The cubic root of 895661 is about 96.3935307264.

The spelling of 895661 in words is "eight hundred ninety-five thousand, six hundred sixty-one".