288427387 has 2 divisors, whose sum is σ = 288427388. Its totient is φ = 288427386.

The previous prime is 288427367. The next prime is 288427393. The reversal of 288427387 is 783724882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 288427387 - 2⁷ = 288427259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288427387.

It is not a weakly prime, because it can be changed into another prime (288427357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144213693 + 144213694.

It is an arithmetic number, because the mean of its divisors is an integer number (144213694).

Almost surely, 2^288427387 is an apocalyptic number.

288427387 is a deficient number, since it is larger than the sum of its proper divisors (1).

288427387 is an equidigital number, since it uses as much as digits as its factorization.

288427387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1204224, while the sum is 49.

The square root of 288427387 is about 16983.1500906045. The cubic root of 288427387 is about 660.7119551702.

The spelling of 288427387 in words is "two hundred eighty-eight million, four hundred twenty-seven thousand, three hundred eighty-seven".