268959973 has 2 divisors, whose sum is σ = 268959974. Its totient is φ = 268959972.

The previous prime is 268959917. The next prime is 268959983. The reversal of 268959973 is 379959862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159820164 + 109139809 = 12642^2 + 10447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268959973 is a prime.

It is a super-3 number, since 3×268959973³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268959983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134479986 + 134479987.

It is an arithmetic number, because the mean of its divisors is an integer number (134479987).

Almost surely, 2^268959973 is an apocalyptic number.

It is an amenable number.

268959973 is a deficient number, since it is larger than the sum of its proper divisors (1).

268959973 is an equidigital number, since it uses as much as digits as its factorization.

268959973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 58.

The square root of 268959973 is about 16399.9991768292. Note that the first 3 decimals coincide. The cubic root of 268959973 is about 645.4994613042.

The spelling of 268959973 in words is "two hundred sixty-eight million, nine hundred fifty-nine thousand, nine hundred seventy-three".