969539 has 4 divisors (see below), whose sum is σ = 979056. Its totient is φ = 960024.

The previous prime is 969533. The next prime is 969559. The reversal of 969539 is 935969.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935969 = 17 ⋅55057.

It is a cyclic number.

It is not a de Polignac number, because 969539 - 2¹² = 965443 is a prime.

It is a super-4 number, since 4×969539⁴ (a number of 25 digits) contains 4444 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 969496 and 969505.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 969539.

It is not an unprimeable number, because it can be changed into a prime (969533) 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, 4604 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (244764).

2⁹⁶⁹⁵³⁹ is an apocalyptic number.

969539 is a deficient number, since it is larger than the sum of its proper divisors (9517).

969539 is a wasteful number, since it uses less digits than its factorization.

969539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9516.

The product of its digits is 65610, while the sum is 41.

The square root of 969539 is about 984.6517150749. The cubic root of 969539 is about 98.9741455459.

The spelling of 969539 in words is "nine hundred sixty-nine thousand, five hundred thirty-nine".