117847841 has 4 divisors (see below), whose sum is σ = 119606832. Its totient is φ = 116088852.

The previous prime is 117847831. The next prime is 117847843. The reversal of 117847841 is 148748711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117847841 - 2¹⁴ = 117831457 is a prime.

It is a super-2 number, since 2×117847841² = 27776227256722562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117847843) 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, 879395 + ... + 879528.

It is an arithmetic number, because the mean of its divisors is an integer number (29901708).

Almost surely, 2^117847841 is an apocalyptic number.

It is an amenable number.

117847841 is a deficient number, since it is larger than the sum of its proper divisors (1758991).

117847841 is an equidigital number, since it uses as much as digits as its factorization.

117847841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758990.

The product of its digits is 50176, while the sum is 41.

The square root of 117847841 is about 10855.7745462956. The cubic root of 117847841 is about 490.2758976583.

The spelling of 117847841 in words is "one hundred seventeen million, eight hundred forty-seven thousand, eight hundred forty-one".