117778395 has 16 divisors (see below), whose sum is σ = 215366400. Its totient is φ = 53841504.

The previous prime is 117778379. The next prime is 117778433. The reversal of 117778395 is 593877711.

It is not a de Polignac number, because 117778395 - 2⁴ = 117778379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560745 + ... + 560954.

It is an arithmetic number, because the mean of its divisors is an integer number (13460400).

Almost surely, 2^117778395 is an apocalyptic number.

117778395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117778395 is a deficient number, since it is larger than the sum of its proper divisors (97588005).

117778395 is a wasteful number, since it uses less digits than its factorization.

117778395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121714.

The product of its digits is 370440, while the sum is 48.

The square root of 117778395 is about 10852.5755007740. The cubic root of 117778395 is about 490.1795746093.

The spelling of 117778395 in words is "one hundred seventeen million, seven hundred seventy-eight thousand, three hundred ninety-five".