2057807 has 2 divisors, whose sum is σ = 2057808. Its totient is φ = 2057806.

The previous prime is 2057791. The next prime is 2057813. The reversal of 2057807 is 7087502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2057807 - 2⁴ = 2057791 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2057807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028903 + 1028904.

It is an arithmetic number, because the mean of its divisors is an integer number (1028904).

2^2057807 is an apocalyptic number.

2057807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057807 is an equidigital number, since it uses as much as digits as its factorization.

2057807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 2057807 is about 1434.5058382593. The cubic root of 2057807 is about 127.1944651350.

The spelling of 2057807 in words is "two million, fifty-seven thousand, eight hundred seven".