289012697 has 2 divisors, whose sum is σ = 289012698. Its totient is φ = 289012696.

The previous prime is 289012681. The next prime is 289012777. The reversal of 289012697 is 796210982.

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., 284394496 + 4618201 = 16864^2 + 2149^2 .

It is a cyclic number.

It is not a de Polignac number, because 289012697 - 2⁴ = 289012681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289012627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144506348 + 144506349.

It is an arithmetic number, because the mean of its divisors is an integer number (144506349).

Almost surely, 2^289012697 is an apocalyptic number.

It is an amenable number.

289012697 is a deficient number, since it is larger than the sum of its proper divisors (1).

289012697 is an equidigital number, since it uses as much as digits as its factorization.

289012697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 289012697 is about 17000.3734370748. The cubic root of 289012697 is about 661.1585840657.

The spelling of 289012697 in words is "two hundred eighty-nine million, twelve thousand, six hundred ninety-seven".