288615791 has 2 divisors, whose sum is σ = 288615792. Its totient is φ = 288615790.

The previous prime is 288615779. The next prime is 288615809. The reversal of 288615791 is 197516882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 288615791 - 2¹⁴ = 288599407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288615731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144307895 + 144307896.

It is an arithmetic number, because the mean of its divisors is an integer number (144307896).

Almost surely, 2^288615791 is an apocalyptic number.

288615791 is a deficient number, since it is larger than the sum of its proper divisors (1).

288615791 is an equidigital number, since it uses as much as digits as its factorization.

288615791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 47.

The square root of 288615791 is about 16988.6959770313. The cubic root of 288615791 is about 660.8557853409.

The spelling of 288615791 in words is "two hundred eighty-eight million, six hundred fifteen thousand, seven hundred ninety-one".