117778413 has 8 divisors (see below), whose sum is σ = 157088128. Its totient is φ = 78493824.

The previous prime is 117778379. The next prime is 117778433. The reversal of 117778413 is 314877711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117778413 - 2⁹ = 117777901 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 (117778433) 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, 14220 + ... + 20922.

It is an arithmetic number, because the mean of its divisors is an integer number (19636016).

Almost surely, 2^117778413 is an apocalyptic number.

It is an amenable number.

117778413 is a deficient number, since it is larger than the sum of its proper divisors (39309715).

117778413 is an equidigital number, since it uses as much as digits as its factorization.

117778413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12563.

The product of its digits is 32928, while the sum is 39.

The square root of 117778413 is about 10852.5763300702. The cubic root of 117778413 is about 490.1795995806.

The spelling of 117778413 in words is "one hundred seventeen million, seven hundred seventy-eight thousand, four hundred thirteen".