389114881 has 2 divisors, whose sum is σ = 389114882. Its totient is φ = 389114880.

The previous prime is 389114867. The next prime is 389114911. The reversal of 389114881 is 188411983.

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., 299982400 + 89132481 = 17320^2 + 9441^2 .

It is an emirp because it is prime and its reverse (188411983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389114881 - 2⁷ = 389114753 is a prime.

It is a super-3 number, since 3×389114881³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (389114801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194557440 + 194557441.

It is an arithmetic number, because the mean of its divisors is an integer number (194557441).

Almost surely, 2^389114881 is an apocalyptic number.

It is an amenable number.

389114881 is a deficient number, since it is larger than the sum of its proper divisors (1).

389114881 is an equidigital number, since it uses as much as digits as its factorization.

389114881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 43.

The square root of 389114881 is about 19725.9950572842. The cubic root of 389114881 is about 730.0612202363.

The spelling of 389114881 in words is "three hundred eighty-nine million, one hundred fourteen thousand, eight hundred eighty-one".