117643585 has 16 divisors (see below), whose sum is σ = 144986112. Its totient is φ = 91595200.

The previous prime is 117643583. The next prime is 117643601. The reversal of 117643585 is 585346711.

It is a happy number.

It is not a de Polignac number, because 117643585 - 2¹ = 117643583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117643583) 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, 43575 + ... + 46195.

It is an arithmetic number, because the mean of its divisors is an integer number (9061632).

Almost surely, 2^117643585 is an apocalyptic number.

It is an amenable number.

117643585 is a deficient number, since it is larger than the sum of its proper divisors (27342527).

117643585 is a wasteful number, since it uses less digits than its factorization.

117643585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864.

The product of its digits is 100800, while the sum is 40.

The square root of 117643585 is about 10846.3627543984. The cubic root of 117643585 is about 489.9924821837.

The spelling of 117643585 in words is "one hundred seventeen million, six hundred forty-three thousand, five hundred eighty-five".