117939873 has 16 divisors (see below), whose sum is σ = 161095680. Its totient is φ = 76715856.

The previous prime is 117939851. The next prime is 117939917. The reversal of 117939873 is 378939711.

It is not a de Polignac number, because 117939873 - 2⁸ = 117939617 is a prime.

It is a super-2 number, since 2×117939873² = 27819627286512258, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117939823) 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, 52336 + ... + 54542.

It is an arithmetic number, because the mean of its divisors is an integer number (10068480).

Almost surely, 2^117939873 is an apocalyptic number.

It is an amenable number.

117939873 is a deficient number, since it is larger than the sum of its proper divisors (43155807).

117939873 is a wasteful number, since it uses less digits than its factorization.

117939873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636.

The product of its digits is 285768, while the sum is 48.

The square root of 117939873 is about 10860.0125690535. The cubic root of 117939873 is about 490.4034896745.

The spelling of 117939873 in words is "one hundred seventeen million, nine hundred thirty-nine thousand, eight hundred seventy-three".