1340777 has 2 divisors, whose sum is σ = 1340778. Its totient is φ = 1340776.

The previous prime is 1340767. The next prime is 1340789. The reversal of 1340777 is 7770431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 32041 = 1144^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340777 - 2⁴ = 1340761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1340707) 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, 670388 + 670389.

It is an arithmetic number, because the mean of its divisors is an integer number (670389).

2^1340777 is an apocalyptic number.

It is an amenable number.

1340777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340777 is an equidigital number, since it uses as much as digits as its factorization.

1340777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 1340777 is about 1157.9192545251. The cubic root of 1340777 is about 110.2686820356.

The spelling of 1340777 in words is "one million, three hundred forty thousand, seven hundred seventy-seven".