2057761 has 2 divisors, whose sum is σ = 2057762. Its totient is φ = 2057760.

The previous prime is 2057747. The next prime is 2057777. The reversal of 2057761 is 1677502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 10000 = 1431^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057761 - 2⁵ = 2057729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2057701) 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, 1028880 + 1028881.

It is an arithmetic number, because the mean of its divisors is an integer number (1028881).

2^2057761 is an apocalyptic number.

It is an amenable number.

2057761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057761 is an equidigital number, since it uses as much as digits as its factorization.

2057761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2057761 is about 1434.4898047738. The cubic root of 2057761 is about 127.1935173641.

The spelling of 2057761 in words is "two million, fifty-seven thousand, seven hundred sixty-one".