117893665 has 8 divisors (see below), whose sum is σ = 142191720. Its totient is φ = 93835392.

The previous prime is 117893647. The next prime is 117893687. The reversal of 117893665 is 566398711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13608721 + 104284944 = 3689^2 + 10212^2 .

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 117893665 - 2²³ = 109505057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58860 + ... + 60829.

It is an arithmetic number, because the mean of its divisors is an integer number (17773965).

Almost surely, 2^117893665 is an apocalyptic number.

It is an amenable number.

117893665 is a deficient number, since it is larger than the sum of its proper divisors (24298055).

117893665 is a wasteful number, since it uses less digits than its factorization.

117893665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119891.

The product of its digits is 272160, while the sum is 46.

The square root of 117893665 is about 10857.8849229489. The cubic root of 117893665 is about 490.3394357801.

The spelling of 117893665 in words is "one hundred seventeen million, eight hundred ninety-three thousand, six hundred sixty-five".