117548897 has 4 divisors (see below), whose sum is σ = 124463556. Its totient is φ = 110634240.

The previous prime is 117548777. The next prime is 117548911. The reversal of 117548897 is 798845711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798845711 = 17747 ⋅45013.

It can be written as a sum of positive squares in 2 ways, for example, as 79405921 + 38142976 = 8911^2 + 6176^2 .

It is a cyclic number.

It is not a de Polignac number, because 117548897 - 2¹⁰ = 117547873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117548597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3457304 + ... + 3457337.

It is an arithmetic number, because the mean of its divisors is an integer number (31115889).

Almost surely, 2^117548897 is an apocalyptic number.

117548897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

117548897 is a deficient number, since it is larger than the sum of its proper divisors (6914659).

117548897 is an equidigital number, since it uses as much as digits as its factorization.

117548897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914658.

The product of its digits is 564480, while the sum is 50.

The square root of 117548897 is about 10841.9969101637. The cubic root of 117548897 is about 489.8609865269.

The spelling of 117548897 in words is "one hundred seventeen million, five hundred forty-eight thousand, eight hundred ninety-seven".