288826985 has 16 divisors (see below), whose sum is σ = 369363456. Its totient is φ = 216308928.

The previous prime is 288826981. The next prime is 288826987. The reversal of 288826985 is 589628882.

It is not a de Polignac number, because 288826985 - 2² = 288826981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 288826985.

It is not an unprimeable number, because it can be changed into a prime (288826981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21314 + ... + 32123.

It is an arithmetic number, because the mean of its divisors is an integer number (23085216).

Almost surely, 2^288826985 is an apocalyptic number.

It is an amenable number.

288826985 is a deficient number, since it is larger than the sum of its proper divisors (80536471).

288826985 is a wasteful number, since it uses less digits than its factorization.

288826985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53512.

The product of its digits is 4423680, while the sum is 56.

The square root of 288826985 is about 16994.9105616946. The cubic root of 288826985 is about 661.0169393178.

The spelling of 288826985 in words is "two hundred eighty-eight million, eight hundred twenty-six thousand, nine hundred eighty-five".