288803881 has 2 divisors, whose sum is σ = 288803882. Its totient is φ = 288803880.

The previous prime is 288803873. The next prime is 288803891. The reversal of 288803881 is 188308882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216825625 + 71978256 = 14725^2 + 8484^2 .

It is a cyclic number.

It is not a de Polignac number, because 288803881 - 2³ = 288803873 is a prime.

It is a super-2 number, since 2×288803881² = 166815363361324322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (288803891) 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 as a sum of consecutive naturals, namely, 144401940 + 144401941.

It is an arithmetic number, because the mean of its divisors is an integer number (144401941).

Almost surely, 2^288803881 is an apocalyptic number.

It is an amenable number.

288803881 is a deficient number, since it is larger than the sum of its proper divisors (1).

288803881 is an equidigital number, since it uses as much as digits as its factorization.

288803881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196608, while the sum is 46.

The square root of 288803881 is about 16994.2308151914. The cubic root of 288803881 is about 660.9993133763. Note that the first 3 decimals are identical.

It can be divided in two parts, 28880 and 3881, that added together give a square (32761 = 181²).

The spelling of 288803881 in words is "two hundred eighty-eight million, eight hundred three thousand, eight hundred eighty-one".