268897897 has 2 divisors, whose sum is σ = 268897898. Its totient is φ = 268897896.

The previous prime is 268897841. The next prime is 268897903. The reversal of 268897897 is 798798862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267126336 + 1771561 = 16344^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 268897897 - 2¹¹ = 268895849 is a prime.

It is a super-2 number, since 2×268897897² = 144612158022045218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268897297) 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, 134448948 + 134448949.

It is an arithmetic number, because the mean of its divisors is an integer number (134448949).

Almost surely, 2^268897897 is an apocalyptic number.

It is an amenable number.

268897897 is a deficient number, since it is larger than the sum of its proper divisors (1).

268897897 is an equidigital number, since it uses as much as digits as its factorization.

268897897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24385536, while the sum is 64.

The square root of 268897897 is about 16398.1065065452. The cubic root of 268897897 is about 645.4497970273.

The spelling of 268897897 in words is "two hundred sixty-eight million, eight hundred ninety-seven thousand, eight hundred ninety-seven".