288448649 has 2 divisors, whose sum is σ = 288448650. Its totient is φ = 288448648.

The previous prime is 288448637. The next prime is 288448651. The reversal of 288448649 is 946844882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210250000 + 78198649 = 14500^2 + 8843^2 .

It is a cyclic number.

It is not a de Polignac number, because 288448649 - 2¹⁶ = 288383113 is a prime.

Together with 288448651, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288448649.

It is not a weakly prime, because it can be changed into another prime (288448619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144224324 + 144224325.

It is an arithmetic number, because the mean of its divisors is an integer number (144224325).

Almost surely, 2^288448649 is an apocalyptic number.

It is an amenable number.

288448649 is a deficient number, since it is larger than the sum of its proper divisors (1).

288448649 is an equidigital number, since it uses as much as digits as its factorization.

288448649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3538944, while the sum is 53.

The square root of 288448649 is about 16983.7760524567. The cubic root of 288448649 is about 660.7281900044.

The spelling of 288448649 in words is "two hundred eighty-eight million, four hundred forty-eight thousand, six hundred forty-nine".