289079641 has 2 divisors, whose sum is σ = 289079642. Its totient is φ = 289079640.

The previous prime is 289079639. The next prime is 289079647. The reversal of 289079641 is 146970982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247747600 + 41332041 = 15740^2 + 6429^2 .

It is a cyclic number.

It is not a de Polignac number, because 289079641 - 2¹ = 289079639 is a prime.

Together with 289079639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 289079591 and 289079600.

It is not a weakly prime, because it can be changed into another prime (289079647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144539820 + 144539821.

It is an arithmetic number, because the mean of its divisors is an integer number (144539821).

Almost surely, 2^289079641 is an apocalyptic number.

It is an amenable number.

289079641 is a deficient number, since it is larger than the sum of its proper divisors (1).

289079641 is an equidigital number, since it uses as much as digits as its factorization.

289079641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 289079641 is about 17002.3422210000. The cubic root of 289079641 is about 661.2096281707.

The spelling of 289079641 in words is "two hundred eighty-nine million, seventy-nine thousand, six hundred forty-one".