117858641 has 8 divisors (see below), whose sum is σ = 120960000. Its totient is φ = 114768160.

The previous prime is 117858619. The next prime is 117858659. The reversal of 117858641 is 146858711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117858641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117858241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22160 + ... + 26958.

It is an arithmetic number, because the mean of its divisors is an integer number (15120000).

Almost surely, 2^117858641 is an apocalyptic number.

It is an amenable number.

117858641 is a deficient number, since it is larger than the sum of its proper divisors (3101359).

117858641 is an equidigital number, since it uses as much as digits as its factorization.

117858641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439.

The product of its digits is 53760, while the sum is 41.

The square root of 117858641 is about 10856.2719660112. The cubic root of 117858641 is about 490.2908740831.

The spelling of 117858641 in words is "one hundred seventeen million, eight hundred fifty-eight thousand, six hundred forty-one".