117883378 has 4 divisors (see below), whose sum is σ = 176825070. Its totient is φ = 58941688.

The previous prime is 117883361. The next prime is 117883387. The reversal of 117883378 is 873388711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873388711 = 13 ⋅67183747.

It can be written as a sum of positive squares in only one way, i.e., 104509729 + 13373649 = 10223^2 + 3657^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29470843 + ... + 29470846.

Almost surely, 2^117883378 is an apocalyptic number.

117883378 is a deficient number, since it is larger than the sum of its proper divisors (58941692).

117883378 is an equidigital number, since it uses as much as digits as its factorization.

117883378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58941691.

The product of its digits is 225792, while the sum is 46.

The square root of 117883378 is about 10857.4112015710. The cubic root of 117883378 is about 490.3251735818.

The spelling of 117883378 in words is "one hundred seventeen million, eight hundred eighty-three thousand, three hundred seventy-eight".