268988383 has 2 divisors, whose sum is σ = 268988384. Its totient is φ = 268988382.

The previous prime is 268988353. The next prime is 268988389. The reversal of 268988383 is 383889862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268988383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268988389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134494191 + 134494192.

It is an arithmetic number, because the mean of its divisors is an integer number (134494192).

Almost surely, 2^268988383 is an apocalyptic number.

268988383 is a deficient number, since it is larger than the sum of its proper divisors (1).

268988383 is an equidigital number, since it uses as much as digits as its factorization.

268988383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 55.

The square root of 268988383 is about 16400.8653125376. The cubic root of 268988383 is about 645.5221883465.

The spelling of 268988383 in words is "two hundred sixty-eight million, nine hundred eighty-eight thousand, three hundred eighty-three".