117566783 has 8 divisors (see below), whose sum is σ = 121895280. Its totient is φ = 113256640.

The previous prime is 117566767. The next prime is 117566809. The reversal of 117566783 is 387665711.

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 117566783 - 2⁴ = 117566767 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 (117566753) 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, 9203 + ... + 17883.

It is an arithmetic number, because the mean of its divisors is an integer number (15236910).

Almost surely, 2^117566783 is an apocalyptic number.

117566783 is a deficient number, since it is larger than the sum of its proper divisors (4328497).

117566783 is an equidigital number, since it uses as much as digits as its factorization.

117566783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9177.

The product of its digits is 211680, while the sum is 44.

The square root of 117566783 is about 10842.8217268385. The cubic root of 117566783 is about 489.8858306825.

The spelling of 117566783 in words is "one hundred seventeen million, five hundred sixty-six thousand, seven hundred eighty-three".