965641 has 4 divisors (see below), whose sum is σ = 968212. Its totient is φ = 963072.

The previous prime is 965639. The next prime is 965647. The reversal of 965641 is 146569.

965641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146569 = 103 ⋅1423.

It can be written as a sum of positive squares in 2 ways, for example, as 319225 + 646416 = 565^2 + 804^2 .

It is a cyclic number.

It is not a de Polignac number, because 965641 - 2¹ = 965639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (965647) 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, 600 + ... + 1513.

It is an arithmetic number, because the mean of its divisors is an integer number (242053).

2⁹⁶⁵⁶⁴¹ is an apocalyptic number.

It is an amenable number.

965641 is a deficient number, since it is larger than the sum of its proper divisors (2571).

965641 is a wasteful number, since it uses less digits than its factorization.

965641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570.

The product of its digits is 6480, while the sum is 31.

The square root of 965641 is about 982.6703414676. The cubic root of 965641 is about 98.8413266113.

The spelling of 965641 in words is "nine hundred sixty-five thousand, six hundred forty-one".