117907217 has 4 divisors (see below), whose sum is σ = 124112880. Its totient is φ = 111701556.

The previous prime is 117907183. The next prime is 117907249. The reversal of 117907217 is 712709711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117907217 - 2¹⁰ = 117906193 is a prime.

It is a super-2 number, since 2×117907217² = 27804223641370178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117907717) by changing a digit.

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, 3102803 + ... + 3102840.

It is an arithmetic number, because the mean of its divisors is an integer number (31028220).

Almost surely, 2^117907217 is an apocalyptic number.

It is an amenable number.

117907217 is a deficient number, since it is larger than the sum of its proper divisors (6205663).

117907217 is an equidigital number, since it uses as much as digits as its factorization.

117907217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205662.

The product of its (nonzero) digits is 6174, while the sum is 35.

The square root of 117907217 is about 10858.5089676253. The cubic root of 117907217 is about 490.3582234038.

The spelling of 117907217 in words is "one hundred seventeen million, nine hundred seven thousand, two hundred seventeen".