969665 has 16 divisors (see below), whose sum is σ = 1252800. Its totient is φ = 718272.

The previous prime is 969641. The next prime is 969667. The reversal of 969665 is 566969.

969665 = T₁₅₁ + T₁₅₂ + ... + T₂₀₉.

It is a cyclic number.

It is not a de Polignac number, because 969665 - 2¹⁰ = 968641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969667) 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 15 ways as a sum of consecutive naturals, for example, 5519 + ... + 5691.

It is an arithmetic number, because the mean of its divisors is an integer number (78300).

2⁹⁶⁹⁶⁶⁵ is an apocalyptic number.

969665 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

969665 is a deficient number, since it is larger than the sum of its proper divisors (283135).

969665 is a wasteful number, since it uses less digits than its factorization.

969665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256.

The product of its digits is 87480, while the sum is 41.

The square root of 969665 is about 984.7156950105. The cubic root of 969665 is about 98.9784328763.

The spelling of 969665 in words is "nine hundred sixty-nine thousand, six hundred sixty-five".