289408099 has 2 divisors, whose sum is σ = 289408100. Its totient is φ = 289408098.

The previous prime is 289408087. The next prime is 289408111. The reversal of 289408099 is 990804982.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (289408087) and next prime (289408111).

It is a cyclic number.

It is not a de Polignac number, because 289408099 - 2¹³ = 289399907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289408069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144704049 + 144704050.

It is an arithmetic number, because the mean of its divisors is an integer number (144704050).

Almost surely, 2^289408099 is an apocalyptic number.

289408099 is a deficient number, since it is larger than the sum of its proper divisors (1).

289408099 is an equidigital number, since it uses as much as digits as its factorization.

289408099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 289408099 is about 17011.9986774041. The cubic root of 289408099 is about 661.4599598654.

The spelling of 289408099 in words is "two hundred eighty-nine million, four hundred eight thousand, ninety-nine".