288878047 has 2 divisors, whose sum is σ = 288878048. Its totient is φ = 288878046.

The previous prime is 288878041. The next prime is 288878099. The reversal of 288878047 is 740878882.

It is an a-pointer prime, because the next prime (288878099) can be obtained adding 288878047 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-288878047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 288877985 and 288878003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288878041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144439023 + 144439024.

It is an arithmetic number, because the mean of its divisors is an integer number (144439024).

Almost surely, 2^288878047 is an apocalyptic number.

288878047 is a deficient number, since it is larger than the sum of its proper divisors (1).

288878047 is an equidigital number, since it uses as much as digits as its factorization.

288878047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1605632, while the sum is 52.

The square root of 288878047 is about 16996.4127685815. The cubic root of 288878047 is about 661.0558909622.

The spelling of 288878047 in words is "two hundred eighty-eight million, eight hundred seventy-eight thousand, forty-seven".