289288663 has 2 divisors, whose sum is σ = 289288664. Its totient is φ = 289288662.

The previous prime is 289288639. The next prime is 289288667. The reversal of 289288663 is 366882982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289288663 - 2¹⁷ = 289157591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289288663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289288667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144644331 + 144644332.

It is an arithmetic number, because the mean of its divisors is an integer number (144644332).

Almost surely, 2^289288663 is an apocalyptic number.

289288663 is a deficient number, since it is larger than the sum of its proper divisors (1).

289288663 is an equidigital number, since it uses as much as digits as its factorization.

289288663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 52.

The square root of 289288663 is about 17008.4879692464. The cubic root of 289288663 is about 661.3689545776.

The spelling of 289288663 in words is "two hundred eighty-nine million, two hundred eighty-eight thousand, six hundred sixty-three".