4056517 has 2 divisors, whose sum is σ = 4056518. Its totient is φ = 4056516.

The previous prime is 4056509. The next prime is 4056527. The reversal of 4056517 is 7156504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3996001 + 60516 = 1999^2 + 246^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056517 - 2³ = 4056509 is a prime.

4056517 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4056527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028258 + 2028259.

It is an arithmetic number, because the mean of its divisors is an integer number (2028259).

Almost surely, 2^4056517 is an apocalyptic number.

It is an amenable number.

4056517 is a deficient number, since it is larger than the sum of its proper divisors (1).

4056517 is an equidigital number, since it uses as much as digits as its factorization.

4056517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 4056517 is about 2014.0796905783. The cubic root of 4056517 is about 159.4842376565.

The spelling of 4056517 in words is "four million, fifty-six thousand, five hundred seventeen".