289452377 has 2 divisors, whose sum is σ = 289452378. Its totient is φ = 289452376.

The previous prime is 289452347. The next prime is 289452379. The reversal of 289452377 is 773254982.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233142361 + 56310016 = 15269^2 + 7504^2 .

It is a cyclic number.

It is not a de Polignac number, because 289452377 - 2⁶ = 289452313 is a prime.

Together with 289452379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289452379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144726188 + 144726189.

It is an arithmetic number, because the mean of its divisors is an integer number (144726189).

Almost surely, 2^289452377 is an apocalyptic number.

It is an amenable number.

289452377 is a deficient number, since it is larger than the sum of its proper divisors (1).

289452377 is an equidigital number, since it uses as much as digits as its factorization.

289452377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 289452377 is about 17013.3000032328. The cubic root of 289452377 is about 661.4936915068.

The spelling of 289452377 in words is "two hundred eighty-nine million, four hundred fifty-two thousand, three hundred seventy-seven".