117978353 has 8 divisors (see below), whose sum is σ = 124300800. Its totient is φ = 111667248.

The previous prime is 117978337. The next prime is 117978359. The reversal of 117978353 is 353879711.

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 117978353 - 2⁴ = 117978337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117978359) 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, 26288 + ... + 30446.

It is an arithmetic number, because the mean of its divisors is an integer number (15537600).

Almost surely, 2^117978353 is an apocalyptic number.

It is an amenable number.

117978353 is a deficient number, since it is larger than the sum of its proper divisors (6322447).

117978353 is a wasteful number, since it uses less digits than its factorization.

117978353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671.

The product of its digits is 158760, while the sum is 44.

The square root of 117978353 is about 10861.7840615619. The cubic root of 117978353 is about 490.4568181881.

The spelling of 117978353 in words is "one hundred seventeen million, nine hundred seventy-eight thousand, three hundred fifty-three".