117043427 has 4 divisors (see below), whose sum is σ = 117192936. Its totient is φ = 116893920.

The previous prime is 117043417. The next prime is 117043471. The reversal of 117043427 is 724340711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724340711 = 18839 ⋅38449.

It is a cyclic number.

It is not a de Polignac number, because 117043427 - 2⁴ = 117043411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117043427.

It is not an unprimeable number, because it can be changed into a prime (117043417) 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, 73574 + ... + 75147.

It is an arithmetic number, because the mean of its divisors is an integer number (29298234).

Almost surely, 2^117043427 is an apocalyptic number.

117043427 is a deficient number, since it is larger than the sum of its proper divisors (149509).

117043427 is an equidigital number, since it uses as much as digits as its factorization.

117043427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149508.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 117043427 is about 10818.6610539382. The cubic root of 117043427 is about 489.1578300701.

The spelling of 117043427 in words is "one hundred seventeen million, forty-three thousand, four hundred twenty-seven".