117286647 has 8 divisors (see below), whose sum is σ = 156568944. Its totient is φ = 78097728.

The previous prime is 117286613. The next prime is 117286661. The reversal of 117286647 is 746682711.

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

It is not a de Polignac number, because 117286647 - 2¹² = 117282551 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 117286599 and 117286608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117286607) 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, 20358 + ... + 25475.

It is an arithmetic number, because the mean of its divisors is an integer number (19571118).

Almost surely, 2^117286647 is an apocalyptic number.

117286647 is a deficient number, since it is larger than the sum of its proper divisors (39282297).

117286647 is an equidigital number, since it uses as much as digits as its factorization.

117286647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46689.

The product of its digits is 112896, while the sum is 42.

The square root of 117286647 is about 10829.8959828800. The cubic root of 117286647 is about 489.4964242017.

The spelling of 117286647 in words is "one hundred seventeen million, two hundred eighty-six thousand, six hundred forty-seven".