1268777 has 2 divisors, whose sum is σ = 1268778. Its totient is φ = 1268776.

The previous prime is 1268759. The next prime is 1268783. The reversal of 1268777 is 7778621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811801 + 456976 = 901^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268777 - 2⁶ = 1268713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1268777.

It is not a weakly prime, because it can be changed into another prime (1268747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634388 + 634389.

It is an arithmetic number, because the mean of its divisors is an integer number (634389).

2^1268777 is an apocalyptic number.

It is an amenable number.

1268777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268777 is an equidigital number, since it uses as much as digits as its factorization.

1268777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 38.

The square root of 1268777 is about 1126.4000177557. The cubic root of 1268777 is about 108.2584402815.

The spelling of 1268777 in words is "one million, two hundred sixty-eight thousand, seven hundred seventy-seven".