288325889 has 2 divisors, whose sum is σ = 288325890. Its totient is φ = 288325888.

The previous prime is 288325853. The next prime is 288325901. The reversal of 288325889 is 988523882.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202578289 + 85747600 = 14233^2 + 9260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-288325889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288325889.

It is not a weakly prime, because it can be changed into another prime (288325789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144162944 + 144162945.

It is an arithmetic number, because the mean of its divisors is an integer number (144162945).

Almost surely, 2^288325889 is an apocalyptic number.

It is an amenable number.

288325889 is a deficient number, since it is larger than the sum of its proper divisors (1).

288325889 is an equidigital number, since it uses as much as digits as its factorization.

288325889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2211840, while the sum is 53.

The square root of 288325889 is about 16980.1616305617. The cubic root of 288325889 is about 660.6344442577.

The spelling of 288325889 in words is "two hundred eighty-eight million, three hundred twenty-five thousand, eight hundred eighty-nine".