289387063 has 4 divisors (see below), whose sum is σ = 330728080. Its totient is φ = 248046048.

The previous prime is 289387057. The next prime is 289387093. The reversal of 289387063 is 360783982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 289387063 - 2⁹ = 289386551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289387093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20670498 + ... + 20670511.

It is an arithmetic number, because the mean of its divisors is an integer number (82682020).

Almost surely, 2^289387063 is an apocalyptic number.

289387063 is a deficient number, since it is larger than the sum of its proper divisors (41341017).

289387063 is an equidigital number, since it uses as much as digits as its factorization.

289387063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41341016.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 289387063 is about 17011.3803966639. The cubic root of 289387063 is about 661.4439331211.

The spelling of 289387063 in words is "two hundred eighty-nine million, three hundred eighty-seven thousand, sixty-three".