2028757 has 2 divisors, whose sum is σ = 2028758. Its totient is φ = 2028756.

The previous prime is 2028749. The next prime is 2028773. The reversal of 2028757 is 7578202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 367236 = 1289^2 + 606^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028757 - 2³ = 2028749 is a prime.

It is a Chen prime.

2028757 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014378 + 1014379.

It is an arithmetic number, because the mean of its divisors is an integer number (1014379).

2^2028757 is an apocalyptic number.

It is an amenable number.

2028757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028757 is an equidigital number, since it uses as much as digits as its factorization.

2028757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 2028757 is about 1424.3444105974. The cubic root of 2028757 is about 126.5930928534.

The spelling of 2028757 in words is "two million, twenty-eight thousand, seven hundred fifty-seven".