268970489 has 2 divisors, whose sum is σ = 268970490. Its totient is φ = 268970488.

The previous prime is 268970483. The next prime is 268970491. The reversal of 268970489 is 984079862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227496889 + 41473600 = 15083^2 + 6440^2 .

It is a cyclic number.

It is not a de Polignac number, because 268970489 - 2¹⁶ = 268904953 is a prime.

Together with 268970491, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268970489.

It is not a weakly prime, because it can be changed into another prime (268970483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134485244 + 134485245.

It is an arithmetic number, because the mean of its divisors is an integer number (134485245).

Almost surely, 2^268970489 is an apocalyptic number.

It is an amenable number.

268970489 is a deficient number, since it is larger than the sum of its proper divisors (1).

268970489 is an equidigital number, since it uses as much as digits as its factorization.

268970489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 268970489 is about 16400.3197834676. The cubic root of 268970489 is about 645.5078739362.

The spelling of 268970489 in words is "two hundred sixty-eight million, nine hundred seventy thousand, four hundred eighty-nine".