2750857 has 2 divisors, whose sum is σ = 2750858. Its totient is φ = 2750856.

The previous prime is 2750851. The next prime is 2750861. The reversal of 2750857 is 7580572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1798281 + 952576 = 1341^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750857 - 2⁷ = 2750729 is a prime.

2750857 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2750851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375428 + 1375429.

It is an arithmetic number, because the mean of its divisors is an integer number (1375429).

2^2750857 is an apocalyptic number.

It is an amenable number.

2750857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750857 is an equidigital number, since it uses as much as digits as its factorization.

2750857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 2750857 is about 1658.5707702718. The cubic root of 2750857 is about 140.1165186437.

The spelling of 2750857 in words is "two million, seven hundred fifty thousand, eight hundred fifty-seven".