288256647 has 8 divisors (see below), whose sum is σ = 439248256. Its totient is φ = 164718072.

The previous prime is 288256637. The next prime is 288256651. The reversal of 288256647 is 746652882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 288256647 - 2⁶ = 288256583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 288256596 and 288256605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288256637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6863233 + ... + 6863274.

It is an arithmetic number, because the mean of its divisors is an integer number (54906032).

Almost surely, 2^288256647 is an apocalyptic number.

288256647 is a deficient number, since it is larger than the sum of its proper divisors (150991609).

288256647 is a wasteful number, since it uses less digits than its factorization.

288256647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13726517.

The product of its digits is 1290240, while the sum is 48.

The square root of 288256647 is about 16978.1225993924. The cubic root of 288256647 is about 660.5815558258.

The spelling of 288256647 in words is "two hundred eighty-eight million, two hundred fifty-six thousand, six hundred forty-seven".