288630949 has 2 divisors, whose sum is σ = 288630950. Its totient is φ = 288630948.

The previous prime is 288630911. The next prime is 288630967. The reversal of 288630949 is 949036882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285001924 + 3629025 = 16882^2 + 1905^2 .

It is a cyclic number.

It is not a de Polignac number, because 288630949 - 2¹⁹ = 288106661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288630049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144315474 + 144315475.

It is an arithmetic number, because the mean of its divisors is an integer number (144315475).

Almost surely, 2^288630949 is an apocalyptic number.

It is an amenable number.

288630949 is a deficient number, since it is larger than the sum of its proper divisors (1).

288630949 is an equidigital number, since it uses as much as digits as its factorization.

288630949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 288630949 is about 16989.1420913476. The cubic root of 288630949 is about 660.8673544430.

The spelling of 288630949 in words is "two hundred eighty-eight million, six hundred thirty thousand, nine hundred forty-nine".