117649838 has 8 divisors (see below), whose sum is σ = 177643920. Its totient is φ = 58435200.

The previous prime is 117649823. The next prime is 117649841. The reversal of 117649838 is 838946711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117649792 and 117649801.

It is a congruent number.

It is an unprimeable number.

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, 194483 + ... + 195086.

It is an arithmetic number, because the mean of its divisors is an integer number (22205490).

Almost surely, 2^117649838 is an apocalyptic number.

117649838 is a deficient number, since it is larger than the sum of its proper divisors (59994082).

117649838 is a wasteful number, since it uses less digits than its factorization.

117649838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389722.

The product of its digits is 290304, while the sum is 47.

The square root of 117649838 is about 10846.6510038813. The cubic root of 117649838 is about 490.0011634014.

The spelling of 117649838 in words is "one hundred seventeen million, six hundred forty-nine thousand, eight hundred thirty-eight".