117086947 has 4 divisors (see below), whose sum is σ = 117441016. Its totient is φ = 116732880.

The previous prime is 117086941. The next prime is 117086971. The reversal of 117086947 is 749680711.

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-117086947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117086941) 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, 176538 + ... + 177199.

It is an arithmetic number, because the mean of its divisors is an integer number (29360254).

Almost surely, 2^117086947 is an apocalyptic number.

117086947 is a deficient number, since it is larger than the sum of its proper divisors (354069).

117086947 is an equidigital number, since it uses as much as digits as its factorization.

117086947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354068.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 117086947 is about 10820.6722064759. The cubic root of 117086947 is about 489.2184500507.

The spelling of 117086947 in words is "one hundred seventeen million, eighty-six thousand, nine hundred forty-seven".