289106399 has 2 divisors, whose sum is σ = 289106400. Its totient is φ = 289106398.

The previous prime is 289106393. The next prime is 289106453. The reversal of 289106399 is 993601982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289106399 - 2⁴ = 289106383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289106393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144553199 + 144553200.

It is an arithmetic number, because the mean of its divisors is an integer number (144553200).

Almost surely, 2^289106399 is an apocalyptic number.

289106399 is a deficient number, since it is larger than the sum of its proper divisors (1).

289106399 is an equidigital number, since it uses as much as digits as its factorization.

289106399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 289106399 is about 17003.1290943755. The cubic root of 289106399 is about 661.2300286634.

The spelling of 289106399 in words is "two hundred eighty-nine million, one hundred six thousand, three hundred ninety-nine".