117939471 has 16 divisors (see below), whose sum is σ = 169989120. Its totient is φ = 72303840.

The previous prime is 117939467. The next prime is 117939473. The reversal of 117939471 is 174939711.

It is not a de Polignac number, because 117939471 - 2² = 117939467 is a prime.

It is a super-3 number, since 3×117939471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117939473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4990 + ... + 16148.

It is an arithmetic number, because the mean of its divisors is an integer number (10624320).

Almost surely, 2^117939471 is an apocalyptic number.

117939471 is a deficient number, since it is larger than the sum of its proper divisors (52049649).

117939471 is a wasteful number, since it uses less digits than its factorization.

117939471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11446.

The product of its digits is 47628, while the sum is 42.

The square root of 117939471 is about 10859.9940607719. The cubic root of 117939471 is about 490.4029324911.

The spelling of 117939471 in words is "one hundred seventeen million, nine hundred thirty-nine thousand, four hundred seventy-one".