288987263 has 4 divisors (see below), whose sum is σ = 289059168. Its totient is φ = 288915360.

The previous prime is 288987247. The next prime is 288987277. The reversal of 288987263 is 362789882.

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 288987263 - 2⁴ = 288987247 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 (288987463) 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, 29543 + ... + 38088.

It is an arithmetic number, because the mean of its divisors is an integer number (72264792).

Almost surely, 2^288987263 is an apocalyptic number.

288987263 is a deficient number, since it is larger than the sum of its proper divisors (71905).

288987263 is an equidigital number, since it uses as much as digits as its factorization.

288987263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71904.

The product of its digits is 2322432, while the sum is 53.

The square root of 288987263 is about 16999.6253782253. The cubic root of 288987263 is about 661.1391888386.

The spelling of 288987263 in words is "two hundred eighty-eight million, nine hundred eighty-seven thousand, two hundred sixty-three".