969561 has 12 divisors (see below), whose sum is σ = 1483092. Its totient is φ = 608256.

The previous prime is 969559. The next prime is 969569. The reversal of 969561 is 165969.

969561 is a `hidden beast` number, since 96 + 9 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 553536 + 416025 = 744^2 + 645^2 .

It is not a de Polignac number, because 969561 - 2¹ = 969559 is a prime.

It is a Curzon number.

969561 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3016 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (123591).

2⁹⁶⁹⁵⁶¹ is an apocalyptic number.

It is an amenable number.

969561 is a deficient number, since it is larger than the sum of its proper divisors (513531).

969561 is a wasteful number, since it uses less digits than its factorization.

969561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360 (or 6357 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 969561 is about 984.6628864744. The cubic root of 969561 is about 98.9748941542.

The spelling of 969561 in words is "nine hundred sixty-nine thousand, five hundred sixty-one".