117302387 has 4 divisors (see below), whose sum is σ = 118079376. Its totient is φ = 116525400.

The previous prime is 117302351. The next prime is 117302389. The reversal of 117302387 is 783203711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783203711 = 1861 ⋅420851.

It is a cyclic number.

It is not a de Polignac number, because 117302387 - 2¹⁰ = 117301363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117302389) 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, 388268 + ... + 388569.

It is an arithmetic number, because the mean of its divisors is an integer number (29519844).

Almost surely, 2^117302387 is an apocalyptic number.

117302387 is a deficient number, since it is larger than the sum of its proper divisors (776989).

117302387 is an equidigital number, since it uses as much as digits as its factorization.

117302387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776988.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 117302387 is about 10830.6226506143. The cubic root of 117302387 is about 489.5183202125.

The spelling of 117302387 in words is "one hundred seventeen million, three hundred two thousand, three hundred eighty-seven".