288257663 has 4 divisors (see below), whose sum is σ = 289178928. Its totient is φ = 287336400.

The previous prime is 288257653. The next prime is 288257677. The reversal of 288257663 is 366752882.

It is a happy number.

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 288257663 - 2¹⁴ = 288241279 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 (288257603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460163 + ... + 460788.

It is an arithmetic number, because the mean of its divisors is an integer number (72294732).

Almost surely, 2^288257663 is an apocalyptic number.

288257663 is a deficient number, since it is larger than the sum of its proper divisors (921265).

288257663 is an equidigital number, since it uses as much as digits as its factorization.

288257663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921264.

The product of its digits is 967680, while the sum is 47.

The square root of 288257663 is about 16978.1525202243. The cubic root of 288257663 is about 660.5823319282.

The spelling of 288257663 in words is "two hundred eighty-eight million, two hundred fifty-seven thousand, six hundred sixty-three".