117799565 has 8 divisors (see below), whose sum is σ = 152233368. Its totient is φ = 86990400.

The previous prime is 117799559. The next prime is 117799567. The reversal of 117799565 is 565997711.

It can be written as a sum of positive squares in 4 ways, for example, as 4206601 + 113592964 = 2051^2 + 10658^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117799565 - 2⁸ = 117799309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117799567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906086 + ... + 906215.

It is an arithmetic number, because the mean of its divisors is an integer number (19029171).

Almost surely, 2^117799565 is an apocalyptic number.

It is an amenable number.

117799565 is a deficient number, since it is larger than the sum of its proper divisors (34433803).

117799565 is a wasteful number, since it uses less digits than its factorization.

117799565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812319.

The product of its digits is 595350, while the sum is 50.

The square root of 117799565 is about 10853.5508014659. The cubic root of 117799565 is about 490.2089418514.

The spelling of 117799565 in words is "one hundred seventeen million, seven hundred ninety-nine thousand, five hundred sixty-five".