268855837 has 2 divisors, whose sum is σ = 268855838. Its totient is φ = 268855836.

The previous prime is 268855817. The next prime is 268855843. The reversal of 268855837 is 738558862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203747076 + 65108761 = 14274^2 + 8069^2 .

It is a cyclic number.

It is not a de Polignac number, because 268855837 - 2⁷ = 268855709 is a prime.

It is a super-2 number, since 2×268855837² = 144566922177941138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268855817) 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, 134427918 + 134427919.

It is an arithmetic number, because the mean of its divisors is an integer number (134427919).

Almost surely, 2^268855837 is an apocalyptic number.

It is an amenable number.

268855837 is a deficient number, since it is larger than the sum of its proper divisors (1).

268855837 is an equidigital number, since it uses as much as digits as its factorization.

268855837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 52.

The square root of 268855837 is about 16396.8239912490. The cubic root of 268855837 is about 645.4161423275.

The spelling of 268855837 in words is "two hundred sixty-eight million, eight hundred fifty-five thousand, eight hundred thirty-seven".