117844679 has 4 divisors (see below), whose sum is σ = 119011560. Its totient is φ = 116677800.

The previous prime is 117844673. The next prime is 117844687. The reversal of 117844679 is 976448711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117844679 is a prime.

It is a super-2 number, since 2×117844679² = 27774736737226082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117844673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583289 + ... + 583490.

It is an arithmetic number, because the mean of its divisors is an integer number (29752890).

Almost surely, 2^117844679 is an apocalyptic number.

117844679 is a deficient number, since it is larger than the sum of its proper divisors (1166881).

117844679 is a wasteful number, since it uses less digits than its factorization.

117844679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166880.

The product of its digits is 338688, while the sum is 47.

The square root of 117844679 is about 10855.6289085433. The cubic root of 117844679 is about 490.2715127208.

The spelling of 117844679 in words is "one hundred seventeen million, eight hundred forty-four thousand, six hundred seventy-nine".