1028777 has 2 divisors, whose sum is σ = 1028778. Its totient is φ = 1028776.

The previous prime is 1028773. The next prime is 1028803. The reversal of 1028777 is 7778201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891136 + 137641 = 944^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028777 - 2² = 1028773 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1028773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514388 + 514389.

It is an arithmetic number, because the mean of its divisors is an integer number (514389).

2^1028777 is an apocalyptic number.

It is an amenable number.

1028777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028777 is an equidigital number, since it uses as much as digits as its factorization.

1028777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 1028777 is about 1014.2864486919. The cubic root of 1028777 is about 100.9501763866.

The spelling of 1028777 in words is "one million, twenty-eight thousand, seven hundred seventy-seven".