117404905 has 16 divisors (see below), whose sum is σ = 150451200. Its totient is φ = 87756480.

The previous prime is 117404887. The next prime is 117404909. The reversal of 117404905 is 509404711.

It is not a de Polignac number, because 117404905 - 2¹⁵ = 117372137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (117404909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8565 + ... + 17554.

It is an arithmetic number, because the mean of its divisors is an integer number (9403200).

Almost surely, 2^117404905 is an apocalyptic number.

It is an amenable number.

117404905 is a deficient number, since it is larger than the sum of its proper divisors (33046295).

117404905 is a wasteful number, since it uses less digits than its factorization.

117404905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26184.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 117404905 is about 10835.3544012183. The cubic root of 117404905 is about 489.6608857299.

The spelling of 117404905 in words is "one hundred seventeen million, four hundred four thousand, nine hundred five".