117378727 has 4 divisors (see below), whose sum is σ = 124283376. Its totient is φ = 110474080.

The previous prime is 117378719. The next prime is 117378731. The reversal of 117378727 is 727873711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117378727 - 2³ = 117378719 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 (117378127) 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, 3452299 + ... + 3452332.

It is an arithmetic number, because the mean of its divisors is an integer number (31070844).

Almost surely, 2^117378727 is an apocalyptic number.

117378727 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

117378727 is a deficient number, since it is larger than the sum of its proper divisors (6904649).

117378727 is an equidigital number, since it uses as much as digits as its factorization.

117378727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904648.

The product of its digits is 115248, while the sum is 43.

The square root of 117378727 is about 10834.1463438519. The cubic root of 117378727 is about 489.6244894779.

The spelling of 117378727 in words is "one hundred seventeen million, three hundred seventy-eight thousand, seven hundred twenty-seven".