117669439 has 4 divisors (see below), whose sum is σ = 118882624. Its totient is φ = 116456256.

The previous prime is 117669401. The next prime is 117669493. The reversal of 117669439 is 934966711.

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: 934966711 = 7 ⋅133566673.

It is a cyclic number.

It is not a de Polignac number, because 117669439 - 2¹¹ = 117667391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117663439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606447 + ... + 606640.

It is an arithmetic number, because the mean of its divisors is an integer number (29720656).

Almost surely, 2^117669439 is an apocalyptic number.

117669439 is a deficient number, since it is larger than the sum of its proper divisors (1213185).

117669439 is an equidigital number, since it uses as much as digits as its factorization.

117669439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213184.

The product of its digits is 244944, while the sum is 46.

The square root of 117669439 is about 10847.5545170329. The cubic root of 117669439 is about 490.0283740337.

The spelling of 117669439 in words is "one hundred seventeen million, six hundred sixty-nine thousand, four hundred thirty-nine".