117397 has 8 divisors (see below), whose sum is σ = 138752. Its totient is φ = 97200.

The previous prime is 117389. The next prime is 117413. The reversal of 117397 is 793711.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 117397 - 2³ = 117389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117307) 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, 54 + ... + 487.

It is an arithmetic number, because the mean of its divisors is an integer number (17344).

2¹¹⁷³⁹⁷ is an apocalyptic number.

117397 is the 217-th heptagonal number.

It is an amenable number.

117397 is a deficient number, since it is larger than the sum of its proper divisors (21355).

117397 is an equidigital number, since it uses as much as digits as its factorization.

117397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579.

The product of its digits is 1323, while the sum is 28.

The square root of 117397 is about 342.6324561392. The cubic root of 117397 is about 48.9649895683.

The spelling of 117397 in words is "one hundred seventeen thousand, three hundred ninety-seven".