117742347 has 12 divisors (see below), whose sum is σ = 172955640. Its totient is φ = 77164128.

The previous prime is 117742337. The next prime is 117742351. The reversal of 117742347 is 743247711.

It is not a de Polignac number, because 117742347 - 2¹¹ = 117740299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117742337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110338 + ... + 111399.

It is an arithmetic number, because the mean of its divisors is an integer number (14412970).

Almost surely, 2^117742347 is an apocalyptic number.

117742347 is a deficient number, since it is larger than the sum of its proper divisors (55213293).

117742347 is a wasteful number, since it uses less digits than its factorization.

117742347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221802 (or 221799 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 117742347 is about 10850.9145697494. The cubic root of 117742347 is about 490.1295603534.

The spelling of 117742347 in words is "one hundred seventeen million, seven hundred forty-two thousand, three hundred forty-seven".