288320875 has 8 divisors (see below), whose sum is σ = 359824608. Its totient is φ = 230656600.

The previous prime is 288320819. The next prime is 288320881. The reversal of 288320875 is 578023882.

It is not a de Polignac number, because 288320875 - 2²¹ = 286223723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1153159 + ... + 1153408.

It is an arithmetic number, because the mean of its divisors is an integer number (44978076).

Almost surely, 2^288320875 is an apocalyptic number.

288320875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

288320875 is a deficient number, since it is larger than the sum of its proper divisors (71503733).

288320875 is an equidigital number, since it uses as much as digits as its factorization.

288320875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306582 (or 2306572 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 288320875 is about 16980.0139870378. The cubic root of 288320875 is about 660.6306147481.

The spelling of 288320875 in words is "two hundred eighty-eight million, three hundred twenty thousand, eight hundred seventy-five".