117397393 has 4 divisors (see below), whose sum is σ = 124303140. Its totient is φ = 110491648.

The previous prime is 117397381. The next prime is 117397417. The reversal of 117397393 is 393793711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393793711 = 14221 ⋅27691.

It can be written as a sum of positive squares in 2 ways, for example, as 106750224 + 10647169 = 10332^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 117397393 - 2¹⁷ = 117266321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117397193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452848 + ... + 3452881.

It is an arithmetic number, because the mean of its divisors is an integer number (31075785).

Almost surely, 2^117397393 is an apocalyptic number.

It is an amenable number.

117397393 is a deficient number, since it is larger than the sum of its proper divisors (6905747).

117397393 is an equidigital number, since it uses as much as digits as its factorization.

117397393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905746.

The product of its digits is 107163, while the sum is 43.

The square root of 117397393 is about 10835.0077526507. The cubic root of 117397393 is about 489.6504420690.

The spelling of 117397393 in words is "one hundred seventeen million, three hundred ninety-seven thousand, three hundred ninety-three".