289948927 has 2 divisors, whose sum is σ = 289948928. Its totient is φ = 289948926.

The previous prime is 289948891. The next prime is 289948933. The reversal of 289948927 is 729849982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289948927 - 2¹¹ = 289946879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289948937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144974463 + 144974464.

It is an arithmetic number, because the mean of its divisors is an integer number (144974464).

Almost surely, 2^289948927 is an apocalyptic number.

289948927 is a deficient number, since it is larger than the sum of its proper divisors (1).

289948927 is an equidigital number, since it uses as much as digits as its factorization.

289948927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 58.

The square root of 289948927 is about 17027.8867449839. The cubic root of 289948927 is about 661.8717353261.

The spelling of 289948927 in words is "two hundred eighty-nine million, nine hundred forty-eight thousand, nine hundred twenty-seven".