117969 has 4 divisors (see below), whose sum is σ = 157296. Its totient is φ = 78644.

The previous prime is 117959. The next prime is 117973. The reversal of 117969 is 969711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117969 - 2⁵ = 117937 is a prime.

It is a super-2 number, since 2×117969² = 27833369922, which contains 22 as substring.

It is a D-number.

117969 is a lucky number.

It is a plaindrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (117959) 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, 19659 + ... + 19664.

It is an arithmetic number, because the mean of its divisors is an integer number (39324).

2¹¹⁷⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

117969 is a deficient number, since it is larger than the sum of its proper divisors (39327).

117969 is an equidigital number, since it uses as much as digits as its factorization.

117969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39326.

The product of its digits is 3402, while the sum is 33.

The square root of 117969 is about 343.4661555379. The cubic root of 117969 is about 49.0443857155.

The spelling of 117969 in words is "one hundred seventeen thousand, nine hundred sixty-nine".