117976217 has 4 divisors (see below), whose sum is σ = 118029876. Its totient is φ = 117922560.

The previous prime is 117976193. The next prime is 117976231. The reversal of 117976217 is 712679711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 93334921 = 4964^2 + 9661^2 .

It is a cyclic number.

It is not a de Polignac number, because 117976217 - 2¹⁴ = 117959833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117976247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23384 + ... + 27977.

It is an arithmetic number, because the mean of its divisors is an integer number (29507469).

Almost surely, 2^117976217 is an apocalyptic number.

It is an amenable number.

117976217 is a deficient number, since it is larger than the sum of its proper divisors (53659).

117976217 is an equidigital number, since it uses as much as digits as its factorization.

117976217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53658.

The product of its digits is 37044, while the sum is 41.

The square root of 117976217 is about 10861.6857347283. The cubic root of 117976217 is about 490.4538582607.

The spelling of 117976217 in words is "one hundred seventeen million, nine hundred seventy-six thousand, two hundred seventeen".