117884257 has 4 divisors (see below), whose sum is σ = 121070356. Its totient is φ = 114698160.

The previous prime is 117884237. The next prime is 117884279. The reversal of 117884257 is 752488711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94303521 + 23580736 = 9711^2 + 4856^2 .

It is a cyclic number.

It is not a de Polignac number, because 117884257 - 2¹⁹ = 117359969 is a prime.

It is a super-4 number, since 4×117884257⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117884237) 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, 1592994 + ... + 1593067.

It is an arithmetic number, because the mean of its divisors is an integer number (30267589).

Almost surely, 2^117884257 is an apocalyptic number.

It is an amenable number.

117884257 is a deficient number, since it is larger than the sum of its proper divisors (3186099).

117884257 is an equidigital number, since it uses as much as digits as its factorization.

117884257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186098.

The product of its digits is 125440, while the sum is 43.

The square root of 117884257 is about 10857.4516807582. The cubic root of 117884257 is about 490.3263922856.

The spelling of 117884257 in words is "one hundred seventeen million, eight hundred eighty-four thousand, two hundred fifty-seven".