268975969 has 2 divisors, whose sum is σ = 268975970. Its totient is φ = 268975968.

The previous prime is 268975939. The next prime is 268975979. The reversal of 268975969 is 969579862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233692369 + 35283600 = 15287^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 268975969 - 2²³ = 260587361 is a prime.

It is a super-3 number, since 3×268975969³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (268975909) 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, 134487984 + 134487985.

It is an arithmetic number, because the mean of its divisors is an integer number (134487985).

Almost surely, 2^268975969 is an apocalyptic number.

It is an amenable number.

268975969 is a deficient number, since it is larger than the sum of its proper divisors (1).

268975969 is an equidigital number, since it uses as much as digits as its factorization.

268975969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 61.

The square root of 268975969 is about 16400.4868525297. The cubic root of 268975969 is about 645.5122577618.

The spelling of 268975969 in words is "two hundred sixty-eight million, nine hundred seventy-five thousand, nine hundred sixty-nine".