117399813 has 8 divisors (see below), whose sum is σ = 156608928. Its totient is φ = 78228624.

The previous prime is 117399809. The next prime is 117399829. The reversal of 117399813 is 318993711.

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

It is not a de Polignac number, because 117399813 - 2² = 117399809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117399713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231 + ... + 15372.

It is an arithmetic number, because the mean of its divisors is an integer number (19576116).

Almost surely, 2^117399813 is an apocalyptic number.

It is an amenable number.

117399813 is a deficient number, since it is larger than the sum of its proper divisors (39209115).

117399813 is a wasteful number, since it uses less digits than its factorization.

117399813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18963.

The product of its digits is 40824, while the sum is 42.

The square root of 117399813 is about 10835.1194271222. The cubic root of 117399813 is about 489.6538065558.

The spelling of 117399813 in words is "one hundred seventeen million, three hundred ninety-nine thousand, eight hundred thirteen".