117883889 has 2 divisors, whose sum is σ = 117883890. Its totient is φ = 117883888.

The previous prime is 117883861. The next prime is 117883919. The reversal of 117883889 is 988388711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74218225 + 43665664 = 8615^2 + 6608^2 .

It is a cyclic number.

It is not a de Polignac number, because 117883889 - 2¹⁶ = 117818353 is a prime.

It is a super-2 number, since 2×117883889² = 27793222571528642, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117883889.

It is not a weakly prime, because it can be changed into another prime (117883589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58941944 + 58941945.

It is an arithmetic number, because the mean of its divisors is an integer number (58941945).

Almost surely, 2^117883889 is an apocalyptic number.

It is an amenable number.

117883889 is a deficient number, since it is larger than the sum of its proper divisors (1).

117883889 is an equidigital number, since it uses as much as digits as its factorization.

117883889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 53.

The square root of 117883889 is about 10857.4347338586. The cubic root of 117883889 is about 490.3258820668.

The spelling of 117883889 in words is "one hundred seventeen million, eight hundred eighty-three thousand, eight hundred eighty-nine".