268777 has 2 divisors, whose sum is σ = 268778. Its totient is φ = 268776.

The previous prime is 268771. The next prime is 268781. The reversal of 268777 is 777862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168921 + 99856 = 411^2 + 316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268777 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134388 + 134389.

It is an arithmetic number, because the mean of its divisors is an integer number (134389).

2²⁶⁸⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

268777 is a deficient number, since it is larger than the sum of its proper divisors (1).

268777 is an equidigital number, since it uses as much as digits as its factorization.

268777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 37.

The square root of 268777 is about 518.4370742916. The cubic root of 268777 is about 64.5353050713.

The spelling of 268777 in words is "two hundred sixty-eight thousand, seven hundred seventy-seven".