117689969 has 4 divisors (see below), whose sum is σ = 117746160. Its totient is φ = 117633780.

The previous prime is 117689959. The next prime is 117689983. The reversal of 117689969 is 969986711.

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, and also an emirpimes, since its reverse is a distinct semiprime: 969986711 = 97 ⋅9999863.

It is a cyclic number.

It is not a de Polignac number, because 117689969 - 2⁴ = 117689953 is a prime.

It is a super-2 number, since 2×117689969² = 27701857606441922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117689939) 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, 24827 + ... + 29184.

It is an arithmetic number, because the mean of its divisors is an integer number (29436540).

Almost surely, 2^117689969 is an apocalyptic number.

It is an amenable number.

117689969 is a deficient number, since it is larger than the sum of its proper divisors (56191).

117689969 is an equidigital number, since it uses as much as digits as its factorization.

117689969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56190.

The product of its digits is 1469664, while the sum is 56.

The square root of 117689969 is about 10848.5007719961. The cubic root of 117689969 is about 490.0568710889.

The spelling of 117689969 in words is "one hundred seventeen million, six hundred eighty-nine thousand, nine hundred sixty-nine".