289106897 has 2 divisors, whose sum is σ = 289106898. Its totient is φ = 289106896.

The previous prime is 289106833. The next prime is 289106927. The reversal of 289106897 is 798601982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265331521 + 23775376 = 16289^2 + 4876^2 .

It is a cyclic number.

It is not a de Polignac number, because 289106897 - 2⁶ = 289106833 is a prime.

It is not a weakly prime, because it can be changed into another prime (289106827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144553448 + 144553449.

It is an arithmetic number, because the mean of its divisors is an integer number (144553449).

Almost surely, 2^289106897 is an apocalyptic number.

It is an amenable number.

289106897 is a deficient number, since it is larger than the sum of its proper divisors (1).

289106897 is an equidigital number, since it uses as much as digits as its factorization.

289106897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 289106897 is about 17003.1437387326. The cubic root of 289106897 is about 661.2304083303.

The spelling of 289106897 in words is "two hundred eighty-nine million, one hundred six thousand, eight hundred ninety-seven".