288988697 has 2 divisors, whose sum is σ = 288988698. Its totient is φ = 288988696.

The previous prime is 288988691. The next prime is 288988717. The reversal of 288988697 is 796889882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247244176 + 41744521 = 15724^2 + 6461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-288988697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (288988691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144494348 + 144494349.

It is an arithmetic number, because the mean of its divisors is an integer number (144494349).

Almost surely, 2^288988697 is an apocalyptic number.

It is an amenable number.

288988697 is a deficient number, since it is larger than the sum of its proper divisors (1).

288988697 is an equidigital number, since it uses as much as digits as its factorization.

288988697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27869184, while the sum is 65.

The square root of 288988697 is about 16999.6675555730. The cubic root of 288988697 is about 661.1402823954.

The spelling of 288988697 in words is "two hundred eighty-eight million, nine hundred eighty-eight thousand, six hundred ninety-seven".