117900605 has 8 divisors (see below), whose sum is σ = 148927200. Its totient is φ = 89356176.

The previous prime is 117900589. The next prime is 117900623. The reversal of 117900605 is 506009711.

It is a happy number.

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 117900605 - 2⁴ = 117900589 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620435 + ... + 620624.

It is an arithmetic number, because the mean of its divisors is an integer number (18615900).

Almost surely, 2^117900605 is an apocalyptic number.

It is an amenable number.

117900605 is a deficient number, since it is larger than the sum of its proper divisors (31026595).

117900605 is a wasteful number, since it uses less digits than its factorization.

117900605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241083.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 117900605 is about 10858.2045016660. The cubic root of 117900605 is about 490.3490571309.

The spelling of 117900605 in words is "one hundred seventeen million, nine hundred thousand, six hundred five".