288948791 has 2 divisors, whose sum is σ = 288948792. Its totient is φ = 288948790.

The previous prime is 288948773. The next prime is 288948833. The reversal of 288948791 is 197849882.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-288948791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288948731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144474395 + 144474396.

It is an arithmetic number, because the mean of its divisors is an integer number (144474396).

Almost surely, 2^288948791 is an apocalyptic number.

288948791 is a deficient number, since it is larger than the sum of its proper divisors (1).

288948791 is an equidigital number, since it uses as much as digits as its factorization.

288948791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 56.

The square root of 288948791 is about 16998.4937862153. The cubic root of 288948791 is about 661.1098490499.

The spelling of 288948791 in words is "two hundred eighty-eight million, nine hundred forty-eight thousand, seven hundred ninety-one".