117867889 has 2 divisors, whose sum is σ = 117867890. Its totient is φ = 117867888.

The previous prime is 117867857. The next prime is 117867929. The reversal of 117867889 is 988768711.

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., 117831025 + 36864 = 10855^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 117867889 - 2⁵ = 117867857 is a prime.

It is not a weakly prime, because it can be changed into another prime (117867809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58933944 + 58933945.

It is an arithmetic number, because the mean of its divisors is an integer number (58933945).

Almost surely, 2^117867889 is an apocalyptic number.

It is an amenable number.

117867889 is a deficient number, since it is larger than the sum of its proper divisors (1).

117867889 is an equidigital number, since it uses as much as digits as its factorization.

117867889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 55.

The square root of 117867889 is about 10856.6978865583. The cubic root of 117867889 is about 490.3036976129.

The spelling of 117867889 in words is "one hundred seventeen million, eight hundred sixty-seven thousand, eight hundred eighty-nine".