288863489 has 4 divisors (see below), whose sum is σ = 292343856. Its totient is φ = 285383124.

The previous prime is 288863483. The next prime is 288863503. The reversal of 288863489 is 984368882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 288863489 - 2²⁴ = 272086273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288863483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740059 + ... + 1740224.

It is an arithmetic number, because the mean of its divisors is an integer number (73085964).

Almost surely, 2^288863489 is an apocalyptic number.

It is an amenable number.

288863489 is a deficient number, since it is larger than the sum of its proper divisors (3480367).

288863489 is an equidigital number, since it uses as much as digits as its factorization.

288863489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480366.

The product of its digits is 5308416, while the sum is 56.

The square root of 288863489 is about 16995.9844963450. The cubic root of 288863489 is about 661.0447861455.

The spelling of 288863489 in words is "two hundred eighty-eight million, eight hundred sixty-three thousand, four hundred eighty-nine".