117914897 has 4 divisors (see below), whose sum is σ = 118596660. Its totient is φ = 117233136.

The previous prime is 117914887. The next prime is 117914911. The reversal of 117914897 is 798419711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798419711 = 577 ⋅1383743.

It can be written as a sum of positive squares in 2 ways, for example, as 51394561 + 66520336 = 7169^2 + 8156^2 .

It is a cyclic number.

It is not a de Polignac number, because 117914897 - 2⁶ = 117914833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117914827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340622 + ... + 340967.

It is an arithmetic number, because the mean of its divisors is an integer number (29649165).

Almost surely, 2^117914897 is an apocalyptic number.

It is an amenable number.

117914897 is a deficient number, since it is larger than the sum of its proper divisors (681763).

117914897 is an equidigital number, since it uses as much as digits as its factorization.

117914897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681762.

The product of its digits is 127008, while the sum is 47.

The square root of 117914897 is about 10858.8626015803. The cubic root of 117914897 is about 490.3688698242.

It can be divided in two parts, 117914 and 897, that added together give a palindrome (118811).

The spelling of 117914897 in words is "one hundred seventeen million, nine hundred fourteen thousand, eight hundred ninety-seven".